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MEDICAL TERMINOLOGY - A THRU Z PREFIX LIST

        Help!  

Question
Answer
a-   no; not; without  
🗑
an-   no; not; without  
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ab-   away from  
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abdomin/o   abdomen  
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-ac   pertaining to  
🗑
acanth/o   spiny; thorny  
🗑
acar/o   mites  
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acetabul/o   acetabulum (hip socket)  
🗑
acous/o   hearing  
🗑
acoust/o   hearing, sound  
🗑
acr/o   extremities; top; extreme point  
🗑
acromi/o   acromion (extension of shoulder bone)  
🗑
actin/o   light  
🗑
acu/o   sharp; severe; sudden  
🗑
-acusis   hearing  
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ad-   toward  
🗑
-ad   toward  
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aden/o   gland  
🗑
adenoid/o   adenoids  
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adip/o   fat  
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adren/o   adrenal gland  
🗑
adrenal/o   adrenal gland  
🗑
aer/o   air  
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af-   toward  
🗑
agglutin/o   clumping; sticking together  
🗑
-agogue   producer, leader  
🗑
-agon   to assemble; gather  
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agora-   marketplace  
🗑
-agra   excessive pain  
🗑
-al   pertaining to  
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alb/o   white  
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albin/o   white  
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albumin/o   albumin (protein)  
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alges/o   sensitivity to pain  
🗑
-algesia   sensitivity to pain  
🗑
-algia   pain  
🗑
all/o   other  
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alveol/o   alveolus; air sac; small sac  
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ambi-   around, on both sides, about  
🗑
ambly/o   dim; dull  
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amphi-   around, on both sides  
🗑
-amine   nitrogen compound  
🗑
ammon/o   ammonium  
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amni/o   amnion (sac surrounding the embryo)  
🗑
amyl/o   starch  
🗑
an/o   anus  
🗑
-an   pertaining to  
🗑
ana-   up; apart; backward; again; anew  
🗑
andr/o   male  
🗑
aneurysm/o   aneurysm (widening of blood vessel)  
🗑
angi/o   vessel (blood)  
🗑
anis/o   unequal  
🗑
ankyl/o   stiff  
🗑
ante-   before; forward  
🗑
anter/o   front  
🗑
anthrac/o   coal  
🗑
anthr/o   antrum of the stomach  
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anti-   against  
🗑
anxi/o   uneasy; anxious  
🗑
aort/o   aorta (largest artery)  
🗑
-apheresis   removal  
🗑
aphth/o   ulcer  
🗑
apo-   off; away  
🗑
aponeur/o   aponeurosis (type of tendon)  
🗑
append/o   appendix  
🗑
appendic/o   appendix  
🗑
aque/o   water  
🗑
-ar   pertaining to  
🗑
arachn/o   spider  
🗑
-arche   beginning  
🗑
arsenic/o   arsenic  
🗑
arter/o   artery  
🗑
arteri/o   artery  
🗑
arteriol/o   arteriole (small artery)  
🗑
arthr/o   joint  
🗑
-arthria   articulate (speak distinctly)  
🗑
articul/o   joint  
🗑
-artresia   closure, occlusion  
🗑
atreto-   closed, lacking an opening  
🗑
-ary   pertaining to  
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asbest/o   asbestos  
🗑
-ase   enzyme  
🗑
aspir/o   removal  
🗑
-assay   to examine, analyze  
🗑
-asthenia   lack of strength  
🗑
astr/o   star, star-shaped  
🗑
aque/o   water  
🗑
atel/o   incomplete  
🗑
ather/o   plaque (fatty substance)  
🗑
-ation   process; condition  
🗑
atri/o   atrium (upper heart chamber)  
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atmo-   steam, vapor  
🗑
audi/o   hearing  
🗑
audit/o   hearing  
🗑
aur/o   ear  
🗑
auricul/o   ear  
🗑
auscult/o   to listen  
🗑
aut/o   self; own  
🗑
aut-   self; own  
🗑
auto-   self; own  
🗑
aux/o   growth, acceleration  
🗑
axill/o   armpit  
🗑
axi/o   axis  
🗑
azot/o   urea; nitrogen  
🗑
bacill/o   bacilli (bacteria)  
🗑
bacteri/o   bacteria  
🗑
balan/o   glans penis  
🗑
bar/o   pressure; weight  
🗑
bartholin/o   Bartholin glands  
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bary-   weight, pressure  
🗑
-basia   walking  
🗑
bas/o   base; opposite of acid  
🗑
batho-, bathy-   deep, depth  
🗑
bi-   two  
🗑
bi/o   life  
🗑
bil/i   bile; gall  
🗑
bilirubin/o   bilirubin  
🗑
-blast   embryonic; immature cell  
🗑
-blastoma   immature tumor (cells)  
🗑
blenn/o   mucus  
🗑
blephar/o   eyelid  
🗑
bol/o   cast; throw  
🗑
-boulia   will  
🗑
brachi/o   arm  
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brachy-   short  
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brady-   slow  
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brom/o   bromine-containing compound, odor  
🗑
bronch/o   bronchial tube  
🗑
bronchi/o   bronchial tube  
🗑
bronchiol/o   bronchiole  
🗑
bucc/o   cheek  
🗑
bunion/o   bunion  
🗑
burs/o   bursa (sac of fluid near joints)  
🗑
byssin/o   cotton dust  
🗑
caud/o   tail; lower part of body  
🗑
caus/o   burn; burning  
🗑
cauter/o   heat; burn  
🗑
cav/o, cavit/o   hollow, cavity  
🗑
cec/o   cecum (first part of colon)  
🗑
-cele   hernia  
🗑
celi/o   belly; abdomen v  
🗑
-centesis   surgical puncture to remove fluid  
🗑
centr/o   center  
🗑
cephal/o   head  
🗑
cerebell/o   cerebellum (posterior part of the brain)  
🗑
cerebr/o   cerebrum (largest part of the brain)  
🗑
cerumin/o   cerumen  
🗑
cervic/o   neck; cervix (neck of uterus)  
🗑
-chalasia   relaxation  
🗑
-chalasis   relaxation  
🗑
cheil/o   lip  
🗑
chem/o   drug; chemical  
🗑
-chezia   defecation; elimination of wastes  
🗑
chir/o   hand  
🗑
chlor/o   green  
🗑
chlorhydr/o   hydrochloric acid  
🗑
chol/e   bile; gall  
🗑
cholangi/o   bile; vessel  
🗑
cholecyst/o   gallbladder  
🗑
choledoch/o   common bile duct  
🗑
cholesterol/o   cholesterol  
🗑
chondr/o   cartilage  
🗑
chore/o   dance  
🗑
chori/o   chorion (outermost membrane of the fetus)  
🗑
chorion/o   chorion  
🗑
choroid/o   choroid layer of eye  
🗑
-chroia   skin coloration  
🗑
chrom/o   color  
🗑
chron/o   time  
🗑
chrys/o   gold  
🗑
chyl/o   chyle  
🗑
chym/o   to pour  
🗑
cib/o   meal  
🗑
-cide   killing  
🗑
-cidal   pertaining to killing  
🗑
cine/o   movement  
🗑
circum-   around  
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cirrh/o   orange-yellow  
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cis/o   to cut  
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-clasis   to break  
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-clast   to break  
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claustr/o   enclosed space  
🗑
clavicul/o   clavicle (collar bone)  
🗑
cleid/o   clavicle  
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clin/o   to slope, bend  
🗑
-clysis   irrigation; washing  
🗑
coagul/o   coagulation (clotting)  
🗑
-coccus   berry-shaped bacterium  
🗑
coccyg/o   coccyx (tail bone)  
🗑
cochle/o   cochlea (inner part of ear)  
🗑
-coimesis   sleeping  
🗑
col/o   colon (large intestine)  
🗑
coll/a   glue  
🗑
colon/o   colon (large intestine)  
🗑
colp/o   vagina  
🗑
comat/o   deep sleep  
🗑
comi/o   to care for  
🗑
-coma   deep sleep  
🗑
con-   together; with  
🗑
coni/o   dust  
🗑
conjunctiv/o   conjuctiva (lines of eyelids)  
🗑
consci/o   awareness, aware  
🗑
constrict/o   narrowing, binding  
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-constriction   narrowing  
🗑
contra-   against; opposite  
🗑
contus/o   to bruise  
🗑
cor/o   pupil  
🗑
core/o   pupil  
🗑
corne/o   cornea  
🗑
"coron/o   crown or circle (example: Coron/ary arteries encircle  
🗑
the heart)"    
🗑
corpor/o   body  
🗑
cortic/o   cortex, outer region  
🗑
cost/o   rib  
🗑
cox/o   hip  
🗑
crani/o   skull  
🗑
cras/o   mixture; temperament  
🗑
crin/o   secrete  
🗑
-crine   to secrete; separate  
🗑
-crit   to separate  
🗑
critic/o   crisis, dangerous  
🗑
cry/o   cold  
🗑
crypt/o   hidden  
🗑
cubit/o   elbow, forearm  
🗑
culd/o   cul-de-sac  
🗑
cupr/o   copper  
🗑
-cusis   hearing  
🗑
cutane/o   skin  
🗑
cyan/o   blue  
🗑
cycl/o   ciliary body of eye; cycle; circle  
🗑
-cyesis   pregnancy  
🗑
cyst/o   urinary bladder; cyst; sac of fluid  
🗑
cyt/o   cell  
🗑
-cyte   cell  
🗑
-cytosis   condition of cells; slight increase in numbers  
🗑
dacry/o   tear  
🗑
dacryoaden/o   tear gland  
🗑
dacryocyst/o   tear sac; lacriman sac  
🗑
dactyl/o   fingers; toes  
🗑
de-   lack of; down; less; removal of  
🗑
dem/o   people  
🗑
dent/i   tooth  
🗑
derm/o   skin  
🗑
-derma   skin  
🗑
dermat/o   skin  
🗑
desicc/o   drying  
🗑
-desis   to bind; tie together  
🗑
dextr/o   right  
🗑
dia-   complete; through  
🗑
diaphor/o   sweat  
🗑
-dilation   widening; stretching; expanding  
🗑
dilat/o   to enlarge, expand  
🗑
dipl/o   double  
🗑
dips/o   thirst  
🗑
dis-   apart, to separate  
🗑
dist/o   far; distant  
🗑
dolich/o   long  
🗑
dolor/o   pain  
🗑
dors/o   back (of body)  
🗑
dorsi-   back  
🗑
-dote   to give  
🗑
-drome   to run  
🗑
duct/o   to lead; carry  
🗑
duoden/o   duodenum  
🗑
dur/o   dura mater  
🗑
dynam/o   power, strength  
🗑
-dynia   pain  
🗑
dys-   bad: painful: difficult: abnormal  
🗑
encephal/o   brain  
🗑
end-   in; within  
🗑
endo-   in; within  
🗑
enter/o   intestines (usually small intestine)  
🗑
eosin/o   red; rosy; dawn-colored  
🗑
epi-   above; upon; on  
🗑
epididym/o   epididymis  
🗑
epiglott/o   epiglottis  
🗑
episi/o   vulva  
🗑
epitheli/o   skin; epithelium  
🗑
equi-   equality, equal  
🗑
equin/o   horse  
🗑
-er   one who  
🗑
erg/o   work  
🗑
erethism/o   irritation  
🗑
erythem/o   flushed; redness  
🗑
erythr/o   red  
🗑
eschar/o   scab  
🗑
-esis   action; condition; state of  
🗑
eso-   inward  
🗑
esophag/o   esophagus  
🗑
esthes/o   nervous sensation  
🗑
esthesi/o   nervous sensation  
🗑
-esthesia   nervous sensation  
🗑
estr/o   female  
🗑
ethm/o   sieve  
🗑
eti/o   cause  
🗑
eu-   good; normal  
🗑
-eurysm   widening  
🗑
ex-   out; away from  
🗑
exanthemat/o   rash  
🗑
exo-   out; away from  
🗑
extra-   outside  
🗑
faci/o   face  
🗑
-facient   to cause, make happen  
🗑
fasci/o   fascia (membrane supporting muscles)  
🗑
febr/i   fever  
🗑
femor/o   femur (thigh bone)  
🗑
-ferent   to carry  
🗑
ferr/i, ferr/o   iron  
🗑
fet/o   fetus  
🗑
fibr/o   fiber  
🗑
fibros/o   fibrous connective tissue  
🗑
fibul/o   fibula  
🗑
-fication   process of making  
🗑
-fida   split  
🗑
fil/i, fil/o, filament/o   thread, threadlike  
🗑
five   pent-, penta-, quinque-  
🗑
flav/o   yellow  
🗑
flex/o   to bend  
🗑
fluor/o   luminous  
🗑
follicul/o   follicle; small sac  
🗑
fore-   before, in front  
🗑
-form   resembling; in the shape of  
🗑
four   quadri, tetra-  
🗑
fovea/o   small pit or depression  
🗑
frig/o, frigid/o   cold  
🗑
funct/o   performance  
🗑
fung/i   fungus; mushroom (organism lacking chlorophyll)  
🗑
furc/o   forking; branching  
🗑
fusc/o   dark brown  
🗑
-fusion   to pour; to come together  
🗑
galact/o   milk  
🗑
ganglion/o   ganglion; collection of nerve cell bodies  
🗑
gastr/o   stomach  
🗑
gel/o   to freeze, congeal  
🗑
gemell/o   twins  
🗑
-gen   substance that produces  
🗑
-genesis   producing; forming  
🗑
-genic   produced by or in  
🗑
geni/o   chin  
🗑
genit/o   reproduction  
🗑
ge/o   earth, soil  
🗑
ger/o   old age  
🗑
geront/o   old age  
🗑
gest/o   pregnancy  
🗑
gester/o   pregnancy  
🗑
gigant/o   huge  
🗑
gingiv/o   gum  
🗑
glauc/o   gray  
🗑
gli/o   glial cells; neuroglial cells  
🗑
-globin   protein  
🗑
-globulin   protein  
🗑
glomerul/o   glomerulus  
🗑
gloss/o   tongue  
🗑
gluc/o   glucose; sugar  
🗑
glyc/o   glucose; sugar  
🗑
glycogen/o   glycogen; animal starch  
🗑
glycos/o   glucose; sugar  
🗑
gnath/o   jaw  
🗑
gnos/o   knowledge  
🗑
gon/o   seed  
🗑
gonad/o   sex glands  
🗑
goni/o   angle  
🗑
-grade   to go  
🗑
-gram   record  
🗑
granul/o   granule(s)  
🗑
-graph   instrument for recording  
🗑
graph/o   writing  
🗑
-graphy   process of recording  
🗑
gravid/o   pregnancy  
🗑
-gravida   pregnant woman  
🗑
gynec/o   woman; female  
🗑
gyr/o   circle, spiral  
🗑
half   demi, hemi, semi  
🗑
hallucin/o   hallucination  
🗑
hapl/o   simple, single  
🗑
helc/o   ulcer  
🗑
heli/o   sun  
🗑
-helminth   worm  
🗑
hem/o   blood  
🗑
hemat/o   blood  
🗑
hemi-   half  
🗑
hemoglobin/o   hemoglobin  
🗑
hepat/o   liver  
🗑
heredo-   heredity  
🗑
herni/o   hernia  
🗑
-hexia   habit  
🗑
hidr/o   sweat  
🗑
hirsut/o   hairy  
🗑
hirund/i   leech  
🗑
hist/o   tissue  
🗑
histi/o   tissue  
🗑
holo-   entire, complete  
🗑
home/o   sameness; unchanging; constant  
🗑
hormon/o   hormone  
🗑
hymen/o   hymen  
🗑
humer/o   humerus  
🗑
hydr/o   water  
🗑
hygr/o   moisture  
🗑
hyper-   above; excessive  
🗑
hypn/o   sleep  
🗑
hypo-   deficient; below; under; less than normal  
🗑
hypophys/o   pituitary gland  
🗑
hypothalam/o   hypothalamus  
🗑
hypsi-   high  
🗑
hyster/o   uterus; womb  
🗑
-ia   condition  
🗑
-iac   pertaining to  
🗑
-iasis   abnormal condition  
🗑
iatr/o   physician; treatment  
🗑
-ic   pertaining to  
🗑
-ical   pertaining to  
🗑
ichthy/o   dry; scaly  
🗑
-ician   specialist  
🗑
-icle   small  
🗑
ide/o   idea, mental images  
🗑
idi/o   unknown; individual; distinct  
🗑
ile/o   ileum  
🗑
ili/o   ilium  
🗑
immun/o   immune; protection; safe  
🗑
in-   in; into; not  
🗑
-in   a substance, chemical, chemical compound  
🗑
-ine   a substance, chemical, chemical compound  
🗑
-ine   pertaining to  
🗑
infra-   below; inferior to; beneath  
🗑
inguin/o   groin  
🗑
insulin/o   insulin (pancreatic hormone)  
🗑
inter-   between  
🗑
intra-   within; into  
🗑
iod/o   iodine  
🗑
ion/o   ion; to wander  
🗑
-ion   process  
🗑
-ior   pertaining to  
🗑
ipsi-   same  
🗑
ir-   in  
🗑
ir/o   iris (colored portion of eye)  
🗑
irid/o   iris (colored portion of eye)  
🗑
is/o   same; equal  
🗑
isch/o   to hold back; back  
🗑
ischi/o   ischium (part of hip bone)  
🗑
-ism   process; condition  
🗑
-ist   specialist  
🗑
ithy-   erect, straight  
🗑
-itis   inflammation  
🗑
-ium   structure; tissue  
🗑
ixod/i   ticks  
🗑
juxta-   near  
🗑
jaund/o   yellow  
🗑
jejun/o   jejunum  
🗑
kal/i   potassium  
🗑
kary/o   nucleus  
🗑
kel/o   tumor, fibrous growth  
🗑
kerat/o   cornea; hard, horny tissue  
🗑
keraun/o   lightning  
🗑
kern-   nucleus (collection of nerve cells in the brain)  
🗑
ket/o   ketones; acetones  
🗑
keton/o   ketones; acetones  
🗑
kines/o   movement  
🗑
kinesi/o   movement  
🗑
-kinesis   movement  
🗑
klept/o   to steal  
🗑
koil/o   hollow, concave, depressed  
🗑
kraur/o   dry  
🗑
kym/o   waves  
🗑
kyph/o   humpback  
🗑
-labile   unstable, perishable  
🗑
labi/o   lip  
🗑
lacrim/o   tear; tear duct; lacrimal duct  
🗑
lact/o   milk  
🗑
lal/o, -lalia   speech, babble  
🗑
lamin/o   lamina  
🗑
lampr/o   clear  
🗑
lapar/o   abdominal wall; abdomen  
🗑
-lapse   to slide, fall, sag  
🗑
laryng/o   larynx (voice box)  
🗑
later/o   side  
🗑
lecith/o   yolk, ovum  
🗑
lei/o   smooth  
🗑
leiomy/o   smooth (visceral) muscle  
🗑
-lemma   sheath; covering  
🗑
lepid/o   plakes, scales  
🗑
lepr/o   leprosy  
🗑
-lepsy   seizure  
🗑
lept/o   thin, slender  
🗑
-leptic   to seize, take hold of  
🗑
leth/o   death  
🗑
leuk/o   white  
🗑
levo-   left  
🗑
lex/o   word; phrase  
🗑
-lexia   word; phrase  
🗑
lien/o   spleen  
🗑
ligament/o   ligament  
🗑
ligat/o   binding, tying  
🗑
lim/o   hunger  
🗑
lingu/o   tongue  
🗑
lip/o   fat; lipid  
🗑
-lipsis   omit, fail  
🗑
-listhesis   slippage e.g. vertebral slippage conditions  
🗑
lith/o   stone, calculus  
🗑
-(o)lithiasis   Compound suffix:  condition or presence of stones  
🗑
-lithotomy   incision (for removal) of a stone  
🗑
lob/o   lobe  
🗑
logad/o   whites of the eyes  
🗑
-logist   specialist  
🗑
log/o   study  
🗑
-logy   study (process of)  
🗑
loph/o   ridge  
🗑
lord/o   curve; swayback  
🗑
lox/o   oblique, slanting  
🗑
-lucent   to shine  
🗑
lumb/o   lower back; loin  
🗑
lumin/o   light  
🗑
lute/o   yellow  
🗑
lux/o   to slide  
🗑
lymph/o   lymph  
🗑
ly/o   to dissolve, loosen  
🗑
lymphaden/o   limph gland (node)  
🗑
lymphangi/o   lymph vessel  
🗑
-lysis   breakdown; separation; destruction; loosening  
🗑
-lytic   to reduce, destroy, separate; breakdown  
🗑
macro-   large  
🗑
mal-   bad  
🗑
-malacia   softening  
🗑
malleol/o   malleolus  
🗑
mamm/o   breast  
🗑
mandibul/o   mandible (lower jaw bone)  
🗑
-mania   obsessive preoccupation  
🗑
-masesis   mastication, chewing  
🗑
mast/o   breast  
🗑
mastoid/o   mastoid process (behind the ear)  
🗑
maxill/o   maxilla (upper jaw bone)  
🗑
meat/o   meatus (opening)  
🗑
medi/o   middle  
🗑
medic/o   to heal, healing  
🗑
mediastin/o   mediastinum  
🗑
medi/o   middle  
🗑
medull/o   medulla (inner section); middle; soft, marrow  
🗑
mega-   large  
🗑
-megaly   enlargement  
🗑
melan/o   black  
🗑
mel/o   limb, limbs  
🗑
men/o   menses; menstruation  
🗑
mening/o   meninges (membranes covering the spinal cord & brain)  
🗑
meningi/o   meninges  
🗑
ment/o   mind; chin  
🗑
mer/o   part  
🗑
meso-   middle  
🗑
meta-   change; beyond  
🗑
metacarp/o   metacarpals (hand bones)  
🗑
metatars/o   metatarsals (foot bones)  
🗑
-meter   measure  
🗑
method/o   procedure, technique  
🗑
metr/o   uterus (womb); measure  
🗑
metri/o   uterus (womb)  
🗑
-metry   process of measuring  
🗑
mi/o   smaller; less  
🗑
micro-   small  
🗑
-mimesis   imitation, simulation  
🗑
-mimetic   mimic; copy  
🗑
-mission   to send  
🗑
-mnesia   memory  
🗑
mogi-   difficult  
🗑
mon/o   one; single  
🗑
morph/o   shape; form  
🗑
mort/o   death  
🗑
-mortem   death  
🗑
-motor   movement  
🗑
muc/o   mucus  
🗑
mucos/o   mucous membrane (mucosa)  
🗑
multi-   many  
🗑
muscul/o   muscle  
🗑
mut/a   genetic change  
🗑
mutagen/o   causing genetic change  
🗑
my/o   muscle  
🗑
myc/o   fungus  
🗑
mydr/o   wide  
🗑
myel/o   spinal cord; bone marrow  
🗑
myocardi/o   myocardium (heart muscle)  
🗑
myom/o   muscle tumor  
🗑
myos/o   muscle  
🗑
myring/o   tympanic membrane (eardrum)  
🗑
myx/o   mucus  
🗑
narc/o   numbness; stupor; sleep  
🗑
nas/o   nose  
🗑
nat/i   birth  
🗑
natr/o   sodium  
🗑
necr/o   death  
🗑
nect/o   to bind, tie, connect  
🗑
neo-   new  
🗑
nephr/o   kidney  
🗑
neur/o   nerve  
🗑
neutr/o   neither; neutral; neutrophil  
🗑
nid/o   nest  
🗑
nine   noni-  
🗑
noci-   to cause harm, injury or pain  
🗑
noct/o   night  
🗑
nod/o   knot  
🗑
-noia   mind, will  
🗑
nom/o   custom, law  
🗑
nomen-   name  
🗑
norm/o   rule; order  
🗑
nos/o   disease  
🗑
nucle/o   nucleus  
🗑
nulli-   none  
🗑
nutri/o, nutrit/o   to nourish  
🗑
nyct/o   night  
🗑
obstetr/o   pregnancy; birth  
🗑
octa-, octi-   eight  
🗑
ocul/o   eye  
🗑
odont/o   tooth  
🗑
odyn/o   pain  
🗑
-oid   resembling; derived from  
🗑
-ole   little; small  
🗑
ole/o   oil  
🗑
olecran/o   olecranon (elbow)  
🗑
olig/o   scanty  
🗑
om/o   shoulder  
🗑
-oma   tumor; mass; fluid collection  
🗑
omphal/o   umbilicus (navel)  
🗑
onc/o   tumor  
🗑
-one   hormone  
🗑
one   mono, uni  
🗑
one and a half   bi, di  
🗑
onych/o   nail (of fingers or toes)  
🗑
o/o   egg  
🗑
oophor/o   ovary  
🗑
-opaque   obscure  
🗑
ophry/o   eyebrow  
🗑
ophthalm/o   eye  
🗑
-opia   vision condition  
🗑
opisth/o   backward, behind  
🗑
-opsia   vision condition  
🗑
-opsy   view of  
🗑
opt/o   eye; vision  
🗑
optic/o   eye; vision  
🗑
-or   one who  
🗑
or/o   mouth  
🗑
orch/o   testis  
🗑
orchi/o   testis  
🗑
orchid/o   testis  
🗑
-orexia   appetite  
🗑
organ/o   organ  
🗑
orth/o   straight  
🗑
osche/o   scrotum  
🗑
-ose   full of; pertaining to; sugar  
🗑
-osis   condition, usually abnormal  
🗑
-osmia   smell  
🗑
osphresi/o   sense of smell  
🗑
ossicul/o   ossicle (small bone)  
🗑
oste/o   bone  
🗑
-ostosis   condition of bone  
🗑
ot/o   ear  
🗑
-otia   ear condition  
🗑
-ous   pertaining to  
🗑
ov/o   egg  
🗑
ovari/o   ovary  
🗑
ovul/o   egg  
🗑
ox/o   oxygen  
🗑
-oxia   oxygen  
🗑
oxy-   swift; sharpp; acid  
🗑
oxysm/o   sudden  
🗑
pachy-   heavy; thick  
🗑
-pagus   conjoined twins  
🗑
palat/o   palate (roof of mouth)  
🗑
pale/o   old  
🗑
pali-   recurrence, repetition  
🗑
palliat/o   to soothe, relieve  
🗑
palpebr/o   eyelid  
🗑
palp/o, palpat/o   to touch gently  
🗑
palpit/o   flutter, throbbing  
🗑
pan-   all  
🗑
pancreat/o   pancreas  
🗑
pant/o   all, whole  
🗑
papill/o   nipple-like; optic disc  
🗑
papul/o   papule, pimple  
🗑
par-   other than; abnormal  
🗑
para-   near; beside; abnormal; apart from; along the side of  
🗑
-para   to bear, bring forth (live births)  
🗑
-parous   to bear, bring forth  
🗑
parasit/o   parasite  
🗑
parathyroid/o   parathyroid glands  
🗑
-paresis   weakness  
🗑
-pareunia   sexual intercourse  
🗑
-partum   birth; labor  
🗑
patell/a   patella  
🗑
patell/o   patela  
🗑
path/o   disease  
🗑
-pathy   disease; emotion  
🗑
pector/o   chest  
🗑
pedicul/o   louse  
🗑
ped/o   child; foot  
🗑
pelv/i   pelvis; hip region  
🗑
pelv/o   pelvis; hip region  
🗑
pend/o   to hang  
🗑
-penia   deficiency  
🗑
-pepsia   digestion  
🗑
per-   through  
🗑
percuss/o   to tap  
🗑
peri-   surrounding  
🗑
perine/o   perineum  
🗑
peritone/o   peritoneum  
🗑
per/o   deformed, maimed  
🗑
perone/o   fibula  
🗑
perspir/o   breathe through  
🗑
petr/o   stone, petrous region of temporal bone  
🗑
-pexy   fixation; to put in place  
🗑
phac/o   lens of eye  
🗑
phag/o   eat; swallow  
🗑
-phage   eat; swallow  
🗑
-phagia   eating; swallowing  
🗑
phak/o   lens of eye  
🗑
phalang/o   phalanges (of fingers and toes)  
🗑
phall/o   penis  
🗑
phaner/o   visible, apparent  
🗑
pharmac/o   drug  
🗑
pharmaceut/o   drug  
🗑
pharyng/o   throat (pharynx)  
🗑
phas/o   speech  
🗑
-phasia   speech  
🗑
phe/o   dusky; dark  
🗑
-pheresis   removal  
🗑
phil/o   like; love; attraction to  
🗑
-phil   attraction for  
🗑
-philia   attraction for  
🗑
phim/o   muzzle  
🗑
phleb/o   vein  
🗑
phob/o   fear  
🗑
-phobia   fear  
🗑
phon/o   voice; sound  
🗑
-phonia   voice; sound  
🗑
-phor/o   to bear  
🗑
-phoresis   carrying; transmission  
🗑
-phoria   to bear, carry; feeling (mental state)  
🗑
phosphat/o   phosphate  
🗑
phot/o   light  
🗑
phren/o   diaphragm; mind  
🗑
-phthisis   wasting away  
🗑
-phylaxis   protection  
🗑
phyl/o   race, species, type  
🗑
physi/o   nature; function  
🗑
physic/o   physical, natural  
🗑
-physis   to grow  
🗑
phys/o   air, gas  
🗑
phyt/o   plant  
🗑
-phyte   plant  
🗑
picr/o   bitter  
🗑
pies/i, -piesis   pressure  
🗑
pil/o   hair  
🗑
pimel/o   fat, fatty  
🗑
pineal/o   pineal gland  
🗑
pin/o   to drink  
🗑
pituitar/o   pituitary gland  
🗑
-plakia   plaque  
🗑
plan/o   flat, level, wandering  
🗑
plant/o   sole of the foot  
🗑
plas/o   development; formation  
🗑
-plasia   development; formation  
🗑
-plasm   formation; structure  
🗑
-plastic   pertaining to formation  
🗑
-plasty   surgical repair  
🗑
platy-   broad, flat  
🗑
ple/o   more; many  
🗑
-plegia   paralysis; palsy  
🗑
-plegic   paralysis; palsy  
🗑
pleur/o   pleura  
🗑
plex/o   plexus; network (of nerves)  
🗑
-pnea   breathing  
🗑
pneum/o   lung; air; gas  
🗑
pneumon/o   lung; air; gas  
🗑
pod/o   foot  
🗑
-poiesis   formation  
🗑
-poietin   substance that forms  
🗑
poikil/o   varied; irregular  
🗑
pol/o   extreme  
🗑
polio-   gray matter (of brain or spinal cord)  
🗑
poly-   many; much  
🗑
polyp/o   polyp; small growth  
🗑
pont/o   pons ( a part of the brain)  
🗑
por/o, -pore   opening, passageway  
🗑
-porosis   condition of pores (spaces)  
🗑
-posia   drinking  
🗑
posit/o   arrangement, place  
🗑
post-   after; behind  
🗑
poster/o   back (of body); behind  
🗑
-prandial   meal  
🗑
-praxia   action  
🗑
pre-   before; in front of  
🗑
presby/o   old age  
🗑
primi-   first  
🗑
pro-   before; forward  
🗑
proct/o   anus and rectum  
🗑
pros-   before; forward  
🗑
pros/o   forward, anterior  
🗑
prosop/o   face  
🗑
prostat/o   prostate gland  
🗑
prot/o   first  
🗑
prote/o   protein  
🗑
proxim/o   near  
🗑
prurit/o   itching  
🗑
psamm/o   sand, sand-like material  
🗑
pseudo-   false  
🗑
psor/o   itching  
🗑
psych/o   mind  
🗑
psychr/o   cold  
🗑
-pterygium   abnormality of the conjunctiva  
🗑
-ptosis   droop; sag; prolapse; protrude  
🗑
ptyal/o   saliva  
🗑
-ptysis   spitting  
🗑
pub/o   pubis (anterior part of hip bone)  
🗑
pulmon/o   lung  
🗑
puls/o, pulsat/o   to beat, beating  
🗑
-puncture   to pierce a surface  
🗑
pupill/o   pupil (dark center of eye)  
🗑
purpur/i   purple  
🗑
purul/o   pus  
🗑
py/o   pus  
🗑
pycn/o   thick, dense  
🗑
pyel/o   renal pelvis  
🗑
pyl/e   portal vein  
🗑
pylor/o   pylorus; pyloric sphincter  
🗑
pyr/o   fever; fire  
🗑
pyret/o   fever  
🗑
pyrex/o   fever  
🗑
quadri-   four, square  
🗑
qual-   quality, characteristic  
🗑
quant-   how much  
🗑
quasi-   to some degree, as if  
🗑
quart-   fourth, four  
🗑
quer-   to seek, search  
🗑
quercin   oak  
🗑
quint-   fifth, five  
🗑
quota-   how many  
🗑
rachi/o   spinal column; vertebrae  
🗑
radi/o   x-rays; radioactivity; radius (lateral lower arm bone)  
🗑
radicul/o   nerve root  
🗑
re-   back; again; backward  
🗑
-receptor, -ceptor   receiver  
🗑
rect/o   rectum  
🗑
ren/o   kidney  
🗑
respir/o   breath  
🗑
resuscit/o   to revive  
🗑
reticul/o   network  
🗑
retin/o   retina  
🗑
retro-   behind; back; backward  
🗑
rhabd/o   rod  
🗑
rhabdomy/o   striated (skeletal) muscle  
🗑
rhe/o   flow, current, stream  
🗑
rheumat/o   watery flow  
🗑
rhin/o   nose  
🗑
rhiz/o   root  
🗑
rhod/o   red, rosy  
🗑
rhytid/o   wrinkle  
🗑
roentgen/o   x-rays  
🗑
rose/o   rosy  
🗑
rot/o, rotat/o   turn, revolve  
🗑
-rrhage   bursting forth (of blood)  
🗑
-rrhagia   bursting forth (of blood)  
🗑
-rrhaphy   suture  
🗑
-rrhea   flow; discharge  
🗑
-rrhexis   rupture  
🗑
rhythm/o   rhythm  
🗑
rubr/o, rubr/i   red  
🗑
sacchar/o   sugar  
🗑
sacr/o   sacrum  
🗑
salping/o   fallopian tube; auditory (eustachian) tube  
🗑
-salpinx   fallopian tube; oviduct  
🗑
sangu/i   blood  
🗑
sanit/a   health  
🗑
sapr/o   rotten, decay  
🗑
sarc/o   flesh (connective tissue)  
🗑
scapul/o   scapula; shoulder blade  
🗑
-schisis   to split  
🗑
schist/o   split, cleft  
🗑
schiz/o   split  
🗑
sinistr/o   left  
🗑
scint/i   spark  
🗑
scirrh/o   hard  
🗑
scler/o   sclera (white of eye)  
🗑
-sclerosis   hardening  
🗑
scolec/o   worm  
🗑
scoli/o   crooked; bent  
🗑
-scope   instrument for visual examination  
🗑
-scopy   visual examination  
🗑
scot/o   darkness  
🗑
seb/o   sebum  
🗑
sebace/o   sebum  
🗑
sect/o   to cut  
🗑
semi-   half  
🗑
semin/i   semen; seed  
🗑
-sepsis   putrefaction  
🗑
seps/o   infection  
🗑
sept/o   partition  
🗑
ser/o   serum, serous  
🗑
seven   hepta-, sept-, septi-  
🗑
sial/o   saliva  
🗑
sialaden/o   salivary gland  
🗑
sider/o   iron  
🗑
sigmoid/o   sigmoid colon  
🗑
silic/o   glass  
🗑
sinus/o   sinus  
🗑
-sis   state of; condition  
🗑
sit/o   food  
🗑
six   hex-, hexa-, sex-  
🗑
skelet/o   skeleton  
🗑
-sol   solution  
🗑
somat/o   body  
🗑
-some   body  
🗑
somn/o   sleep  
🗑
-somnia   sleep  
🗑
son/o   sound  
🗑
-spadia   to tear; cut  
🗑
span/o   scanty, scarce  
🗑
-spasm   sudden contraction of muscles  
🗑
spectr/o   image, spectrum  
🗑
sperm/o   spermatozoa; sperm cells  
🗑
spermat/o   spermatozoa; sperm cells  
🗑
sphen/o   wedge; sphenoid bone  
🗑
spher/o   globe-shaped; round  
🗑
sphygm/o   pulse  
🗑
-sphyxia   pulse  
🗑
splanchn/o   viscera (internal organs)  
🗑
spin/o   spine (backbone)  
🗑
spir/o   to breathe  
🗑
splen/o   spleen  
🗑
spondyl/o   vertebra (backbone)  
🗑
squam/o   scale  
🗑
-stalsis   contraction  
🗑
staped/o   stapes (middle ear bone)  
🗑
staphyl/o   clusters; uvula  
🗑
-stabile   stable, fixed  
🗑
-stalsis   contraction  
🗑
staped/o   stapes  
🗑
-stasis   to stop; control; place  
🗑
-stat   device/instrument for keeping something stationary  
🗑
-static   pertaining to stopping; controlling  
🗑
steat/o   fat; sebum  
🗑
sten/o   narrowed, constricted  
🗑
-stenosis   tightening; stricture  
🗑
ster/o   solid structure; steroid  
🗑
stere/o   solid; three-dimensional  
🗑
stern/o   sternum (breastbone)  
🗑
steth/o   chest  
🗑
-sthenia   strength  
🗑
stich/o   rows  
🗑
stigmat/o   mark, point  
🗑
-stitial   to set; pertaining to standing or positioned  
🗑
stomat/o   mouth  
🗑
-stomia   condition of the mouth  
🗑
-stomy   new opening (to form a mouth)  
🗑
strept/o   twisted chains  
🗑
-stroma   supporting tissue of an organ  
🗑
styl/o   pole or stake  
🗑
sub-   under; below  
🗑
submaxill/o   mandible (lower jaw bone)  
🗑
succ/o   juice  
🗑
sud/o   sweat  
🗑
super-   above, beyond  
🗑
-suppression   to stop  
🗑
supra-   above; upper  
🗑
sym-   together; with  
🗑
symptom/o   occurrence  
🗑
syn-   together; with  
🗑
synaps/o, synapt/o   point of contact, to join  
🗑
syncop/o   to cut off, cut short; faint  
🗑
syndesm/o   ligament  
🗑
synov/o   synovia; synovial membrane; sheath around a tendon  
🗑
syring/o   tube  
🗑
system/o   system  
🗑
systol/o   contraction  
🗑
tachy-   fast  
🗑
tal/o   talus  
🗑
tars/o   tarsus; hindfoot or ankle  
🗑
tauto-   identical, same  
🗑
tax/o   order; coordination  
🗑
techn/o   skill, art  
🗑
tel/o   complete  
🗑
tele/o   distant  
🗑
temp/o, tempor/o   period of time, the temples  
🗑
ten   deca-  
🗑
ten/o   tendon  
🗑
tendin/o   tendon  
🗑
-tension   pressure  
🗑
tens/o   stretched, strained  
🗑
tephr/o   gray (ashen)  
🗑
terat/o   monster; malformed fetus  
🗑
test/o   testis  
🗑
tetan/o   tetanus  
🗑
tetra-   four  
🗑
thalam/o   thalamus  
🗑
thalass/o   sea  
🗑
thanat/o   death  
🗑
the/o   put; place  
🗑
thec/o   sheath  
🗑
thel/o   nipple  
🗑
therapeut/o   treatment  
🗑
-therapy   treatment  
🗑
therm/o   heat  
🗑
thorac/o   chest  
🗑
-thorax   chest; pleural cavity  
🗑
three   tri-  
🗑
thromb/o   clot  
🗑
-tropia   to turn  
🗑
thym/o   thymus gland  
🗑
-thymia   mind (condition of)  
🗑
-thymic   pertaining to mind  
🗑
thyr/o   thyroid gland; sheild  
🗑
thyroid/o   thyroid gland  
🗑
tibi/o   tibia (shin bone)  
🗑
-tic   pertaining to  
🗑
toc/o   labor; birth  
🗑
-tocia   labor; birth (condition of)  
🗑
-tocin   labor; birth (a substance for)  
🗑
tom/o   to cut  
🗑
-tome   instrument to cut  
🗑
-tomy   process of cutting  
🗑
ton/o   tension  
🗑
tone/o   to stretch  
🗑
tonsill/o   tonsil  
🗑
top/o   place; position; location  
🗑
torso   twisted  
🗑
tox/o   poison  
🗑
toxic/o   poison  
🗑
trache/o   trachea (windpipe)  
🗑
trans-   across; through  
🗑
traumat/o   trauma, injury, wound  
🗑
trem/o, tremul/o   shaking, trembling  
🗑
-tresia   opening  
🗑
tri-   three  
🗑
trich/o   hair  
🗑
trigon/o   trigone (area within the bladder)  
🗑
tri/o   to sort out, sorting  
🗑
-tripsy   to crush  
🗑
troph/o   nourishment; development  
🗑
-trophy   nourishment; development (condition of)  
🗑
-tropia   to turn  
🗑
-tropic   turning  
🗑
-tropin   stimulate; act on  
🗑
tub/o   tube  
🗑
tumesc/o, -tumescence   swelling  
🗑
tympan/o   tympanic membrane (eardrum); middle ear  
🗑
-type   classification; picture  
🗑
typhl/o   cecum, blindness  
🗑
-ule   little; small  
🗑
uln/o   ulna (middle lower arm bone)  
🗑
ul/o   scar, scarring  
🗑
ultra-   beyond; excess  
🗑
-um   structure; tissue; thing  
🗑
umbilic/o   umbilicus (navel)  
🗑
ungu/o   nail  
🗑
uni-   one  
🗑
uran/o   palate  
🗑
-uresis   urination  
🗑
ur/o   urine; urinary tract  
🗑
ureter/o   ureter  
🗑
urethr/o   urethra  
🗑
-uria   urination; condition of urine  
🗑
uric/o   urine condition  
🗑
urin/o   urine  
🗑
-us   structure; thing  
🗑
uter/o   uterus (womb)  
🗑
uve/o   uvea, vascular layer of eye (iris, choroid, ciliary body)  
🗑
uvul/o   uvula  
🗑
vaccin/o   vaccine  
🗑
vag/o   vagus nerve  
🗑
vagin/o   vagina  
🗑
valv/o   valve  
🗑
valvul/o   valve  
🗑
varic/o   varicose veins  
🗑
vas/o   vessel; duct; vas deferens  
🗑
vascul/o   vessel (blood)  
🗑
ven/o   vein  
🗑
ven/i   vein  
🗑
vener/o   venereal (sexual contact)  
🗑
ventil/o   to aerate, oxygenate  
🗑
ventr/o   belly side of body  
🗑
ventricul/o   ventricle (of heart or brain)  
🗑
venul/o   venule (small vein)  
🗑
verm/i   worm  
🗑
verruc/i   wart  
🗑
-verse   to turn  
🗑
-version   to turn  
🗑
vers/o, -verse   turn, turning  
🗑
vertebr/o   vertebra (backbone)  
🗑
vesic/o   urinary bladder  
🗑
vesicul/o   seminal vesicle  
🗑
vestibul/o   vestibule of the inner ear  
🗑
vir/o   virus  
🗑
viscer/o   internal organs  
🗑
vit/o   life  
🗑
vitr/o   vitreous body (of the eye)  
🗑
vitre/o   glass  
🗑
viv/o   life  
🗑
-volemia   blood volume  
🗑
volv/o, volut/o   to roll  
🗑
vulv/o   vulva  
🗑
-ward   in the direction of  
🗑
-where   location  e.g. anywhere  
🗑
-wise   direction  e.g. clockwise  
🗑
with-   together, united  
🗑
xanth/o   yellow  
🗑
xen/o   stranger, foreigner  
🗑
xer/o   dry, dryness  
🗑
xiph/o or xiphi-   sword shaped  
🗑
xylo-   wood    e.g. xylum  
🗑
xys-   file, scrape  
🗑
-y   condition; process  
🗑
yalos   Glass  
🗑
ydor   Water  
🗑
-yne   ending for alkynes  
🗑
yocto-   prefix: one septillionth part of; the factor 10: yoctosecond  
🗑
yoeides   U-shaped  
🗑
-yl   suffix - a monovalent hydrocarbon radical e.g. ethyl  
🗑
-ylene   suffix - A bivalent organic radical  
🗑
yper   Above  
🗑
ypo   Under  
🗑
ypsi   High  
🗑
ystera   Uterus  
🗑
zeo-   boil  
🗑
zinco-   Pertaining to or containing the element zinc  
🗑
zo/o   animal life  
🗑
zon-   girdle, belt  
🗑
zyg/o   union, junction, pair, yoke, tied together  
🗑
zym/o   enzyme, ferment  
🗑
-zyme   enzyme  
🗑


   

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