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Combining Forms

The Language of Medicine 11th Edition

TermDefinition
abdomin/o abdomen
acanth/o spiny; thorny
acetabul/o acetabulum (hip socket)
acous/o hearing
acr/o extremities; top; extreme point
acromi/o acromion (extension of shoulder bone)
actin/o light
acu/o sharp; severe; sudden
aden/o gland
adenoid/o adenoids
adip/o fat
adren/o adrenal gland
adrenal/o adrenal gland
aer/o air
agglutin/o clumping; sticking together
alb/o white
albin/o white
albumin/o albumin (protein)
alges/o sensitivity to pain
all/o other
alveol/o alveolus; air sac; small sac
ambly/o dim; dull
amni/o amnion (sac surrounding the embryo)
amyl/o starch
an/o anus
andr/o male
aneurysm/o aneurysm (widened blood vessel)
angi/o vessel (blood)
anis/o unequal
ankyl/o stiff
anter/o front
anthrac/o coal
anthr/o antrum of the stomach
anxi/o uneasy; anxious
aort/o aorta (largest artery)
aphth/o ulcer
aponeur/o aponeurosis (type of tendon)
append/o appendix
appendic/o appendix
aque/o water
arter/o artery
arteri/o artery
arteriol/o arteriole (small artery)
arthr/o joint
articul/o joint
asbest/o asbestos
atel/o incomplete
ather/o plaque (fatty substance)
atri/o atrium (upper heart chamber)
audi/o hearing
audit/o hearing
aur/o ear
auricul/o ear
aut/o self, own
axill/o armpit
azot/o urea; nitrogen
bacill/o bacilli (bacteria)
bacteri/o bacteria
balan/o glans penis
bar/o pressure; weight
bartholin/o Bartholin glands
bas/o base; opposite of acid
bi/o life
bil/i bile; gall
bilirubin/o bilirubin
blephar/o eyelid
bol/o cast; throw
brachi/o arm
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
cac/o bad
calcane/o calcaneus (heel bone)
calci/o calcium
cali/o, calic/o calyx (cup-shaped)
capillar/o capillary (tiniest blood vessel)
capn/o carbon dioxide
carcin/o cancerous; cancer
cardi/o heart
carp/o wrist bones (carpals)
caud/o tail; lower part of body
caus/o burn; burning
cauter/o heat; burn
cec/o cecum (first part of the colon)
celi/o belly; abdomen
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)
cheil/o lip
chem/o drug; chemical
chir/o hand
chlor/o green
chloryhydr/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
chrom/o color
chron/o time
chym/o to pour
cib/o meal
cine/o movement
cirrh/o orange-yellow
cis/o to cut
claustr/o enclosed space
clavicul/o clavicle (collar bone)
coagul/o coagulation (clotting)
coccyg/o coccyx (tailbone)
cochle/o cochlea (inner part of ear)
col/o colon
coll/a glue
colon/o colon (large intestine)
colp/o vagina
comat/o deep sleep
comi/o to care for
coni/o dust
conjunctiv/o conjunctive (lines the eyelids)
cor/o pupil
core/o pupil
corne/o cornea
coron/o heart (crown or circle)
corpor/o body
cortic/o cortex, outer region
cost/o rib
crani/o skull
cras/o mixture; temperament
crin/o secrete
cry/o cold
crypt/o hidden
culd/o cul-de-sac
cutane/o skin
cyan/o blue
cycl/o ciliary body of eye; cycle; circle
cyst/o urinary bladder; cyst; sac of fluid
cyt/o cell
dacry/o tear
dacryoaden/o tear gland
dacryocyst/o tear sac; lacrimal sac
dactyl/o fingers; toes
dem/o people
dent/i tooth; teeth
derm/o skin
dermat/o skin
desicc/o drying
diaphor/o sweat
dipl/o double
dips/o thirst
dist/o far; distant
dors/o back (of body)
duct/o to lead, carry
duoden/o duodenum
dur/o dura matter
electr/o electricity
emmetr/o in due measure
encephal/o brain
enter/o intestines (usually small intestine)
eosin/o red; rosy; dawn-colored
epididym/o epididymis
epiglott/o epiglottis
episi/o vulva (external female genitalia)
epitheli/o skin; epithelium
equin/o horse
erg/o work
erythem/o flushed; redness
erythr/o red
esophag/o esophagus
esthes/o feeling (nervous sensation)
esthesi/o feeling (nervous sensation)
estr/o female
ethm/o sieve
eti/o cause
exanthemat/o rash
faci/o face
fasci/o fascia (membrane supporting muscles)
femor/o femur (thigh bone)
fibrin/o fiber
fibr/o, fibromat/o fiber
fibros/o fibrous connective tissue
fibul/o fibula
flex/o bend
fluor/o luminous
follicul/o follicle; small sac
fung/i fungus; mushroom (lower organism lacking chlorophyll)
furc/o forking; branching
galact/o milk
ganglion/o ganglion; collection of nerve cell bodies
gastr/o stomach
ger/o old age
geront/o old age
gest/o pregnancy
gester/o pregnancy
gingiv/o gum
glauc/o gray
gli/o glial cells; neurological cells (supportive tissue of nervous system)
glomerul/o glomerulus
gloss/o tongue
gluc/o glucose; sugar
glyc/o glucose; sugar
glycogen/o glycogen; animal starch
glycos/o glucose; sugar
gnos/o knowledge
gon/o seed
gonad/o sex glands
goni/o angle
granul/o granule(s)
gravid/o pregnancy
gynec/o woman; female
hallucin/o hallucination
hem/o blood
hemat/o blood
hemoglobin/o hemoglobin
hepat/o liver
herni/o hernia
hidr/o sweat
hist/o, histi/o tissue
home/o sameness; unchanging; constant
hormon/o hormone
humer/o humerus (upper arm bone)
hydr/o water
hypn/o sleep
hypophys/o pituitary gland
hyster/o uterus; womb
iatr/o physician; treatment
ichthy/o dry; scaly
idi/o unknown; individual; distinct
ile/o ileum
ili/o ilium
immun/o immune; protection; safe
inguin/o groin
insulin/o insulin (pancreatic hormone)
iod/o iodine
ion/o ion; to wander
ir/o iris (colored portion of eye)
irid/o iris (colored portion of eye)
is/o same; equal
isch/o hold back; back
ichi/o ichium (part of the hip bone)
jaund/o yellow
jejun/o jejunum
kal/i potassium
kary/o nucleus
kerat/o cornea; hard, horny tissue
ket/o ketones; acetones
keton/o ketones; acetones
kines/o movement
kinesi/o movement
klept/o to steal
kyph/o humpback
labi/o lip
lacrim/o tear; tear duct; lacrimal duct
lact/o milk
lamin/o lamina (part of vertebral arch)
lapar/o abdominal wall; abdomen
laryng/o larynx (voice box)
later/o side
leiomy/o smooth (visceral) muscle
lept/o thin, slender
leth/o death
leuk/o white
lex/o word; phrase
ligament/o ligament
lingu/o tongue
lip/o fat (a type of lipid)
lipid/o lipid
lith/o stone; calculus
lob/o lobe
log/o study
lord/o curve; swayback
lumb/o lower back; loin
lute/o yellow
lux/o slide
lymph/o lymph
lymphaden/o lymph gland (node)
lymphangi/o lymph vessel
malleol/o malleolus
mamm/o breast
mandibul/o mandible (lower jaw bone)
mast/o breast
mastoid/o mastoid process (behind the ear)
maxill/o maxilla (upper jaw bone)
meat/o meatus (opening)
medi/o middle
mediastin/o medastinum
medull/o medulla (inner section); middle; soft, marrow
melan/o black
men/o menses; menstruation
mening/o meninges (membranes covering the spinal cord and brain)
meningi/o meninges
ment/o mind; chin
metacarp/o metacarpals (hand bones)
metatars/o metatarsals (foot bones)
metr/o uterus (womb); measure
metri/o uterus (womb)
mi/o smaller; less
mon/o one; single
morph/o shape; form
mort/o death
muc/o mucus
mucos/o mucous membrane (mucosa)
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 bind, tie, connect
nephr/o kidney
neur/o nerve
neutr/o neither; neutral; neutrophil
nid/o nest
noct/o night
norm/o rule; order
nos/o disease
nucle/o nucleus
nyct/o night
obstetr/o pregnancy; childbirth
ocul/o eye
odont/o tooth
odyn/o pain
olecran/o olecranon (elbow)
olig/o scanty
om/o shoulder
omphal/o umbilicus (navel)
onc/o tumor
onych/o nail (of fingers or toes)
o/o egg
oophor/o ovary
ophthalm/o eye
opt/o eye; vision
optic/o eye; vision
or/o mouth
orch/o testis
orchi/o testis
orchid/o testis
phak/o lens of eye
phalang/o phalanges (of fingers and toes)
phall/o penis
pharmac/o drug
pharmaceut/o drug
pharyng/o throat (pharynx)
phas/o speech
phe/o duscky; dark
phil/o like; love; attraction to
phim/o muzzle
phleb/o vein
phob/o fear
phon/o voice; sound
phor/o to bear
phot/o light
phren/o diaphragm; mind
physi/o nature; function
phys/o growing
phyt/o plant
pil/o hair
pineal/o pineal gland
pituitar/o pituitary gland
plant/o sole of the foot
plas/o development; formation; growth
ple/o more; many; varied
pleur/o pleura
plex/o plexus; network (of nerves)
pneum/o lung; air; gas
pneumon/o lung; air; gas
pod/o foot
poikil/o varied; irregular
pol/o extreme
polyp/o polyp; small growth
pont/o pons (a part of the brain)
poster/o back (of body); behind
presby/o old age
proct/o anus and rectum
prostat/o prostate gland
prot/o first
prote/o protein
proxim/o near
prurit/o itching
psych/o mind
pub/o pubis (anterior part of hip bone)
pulmon/o lung
pupill/o pupil (dark center of the eye)
purul/o pus
py/o pus
pyel/o renal pelvis
pylor/o pylorus; pyloric sphincter
pyr/o fever; fire
pyret/o fever
pyrex/o fever
rachi/o spinal column; vertebrae
radi/o x-rays; radioactivity; radius (lateral lower arm bone)
radicul/o nerve root
rect/o rectum
ren/o kidney
reticul/o network
retin/o retina
rhabdomy/o striated (skeletal) muscle
rheumat/o watery flow
rhin/o nose
rhytid/o wrinkle
roentgen/o x-rays
rrhythm/o rhythm
sacr/o sacrum
sarc/o flesh (connective tissue)
scapul/o scapula; shoulder blade
schiz/o split
scint/i spark
scirrh/o hard
scler/o sclera (white of eye); hard
scoli/o crooked; bent
scot/o darkness
seb/o sebum
sebace/o sebum
sect/o half
semin/i semen; seed
seps/o infection
sial/o saliva; salivary gland
sialaden/o salivary gland
sider/o iron
sigmoid/o sigmoid colon
silic/o glass
sinus/o sinus
somat/o body
somn/o sleep
son/o sound
sperm/o spermatozoa; sperm cells
spermat/o spermatozoa; sperm cells
sphen/o wedge; sphenoid bone
spher/o globe-shaped; round
sphygm/o pulse
splanchn/o viscera (internal organs)
spin/o spine (backbone)
spir/o to breathe
splen/o spleen
thromb/o clot
thym/o thymus gland
thyr/o thyroid gland; shield
thyroid/o thyroid gland
tibi/o tibia (shin bone)
toc/o labor; birth
tom/o to cut
ton/o tension
tone/o to stretch
tonsill/o tonsil
top/o position; place; locations
tox/o poison
toxic/o poison
trache/o trachea (windpipe)
trich/o hair
trigon/o trigone (area within the bladder)
troph/o nourishment; development
tympan/o tympanic membrane (eardrum); middle ear
uln/o ulna (medial lower arm bone)
umbilic/o umbilicus (navel)
ungu/o nail
ur/o urine; urinary tract
ureter/o ureter
urethr/o urethra
urin/o urine
uter/o uterus (womb)
uve/o uvea, vascular layer of eye (iris, choroid, ciliary body)
uvul/o uvula
vag/o vagus nerve
vagin/o vagina
valv/o valve
varic/o varicose veins
vas/o vessel; duct; vas deferens
vascul/o vessel (blood)
ven/o, ven/i vein
vener/o venereal (sexual contact)
ventr/o belly side of body
ventricul/o ventricle (of heart or brain)
venul/o venule (small vein)
vertebr/o vertebra (backbone)
vesic/o urinary bladder
vesicul/o seminal vesicle
vestibul/o vestibule of the inner ear
viscer/o internal organs
vit/o life
vitr/o vitreous body (of the eye)
vitre/o glass
viv/o life
vol/o to roll
vulv/o vulva (female external genitalia)
xanth/o yellow
xen/o stranger
xer/o dry
xiph/o sword
zo/o animal life
Created by: AbiNoel