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MedTerm Root Words
Root Words
Term | Definition |
---|---|
cardi/o | heart |
gastr/o | stomach |
hepat/o | liver |
rhin/o | nose |
cephal/o | head |
arthr/o | joint |
my/o | muscle |
oste/o | bone |
electr/o | electricity |
carcin/o | cancer |
men/o | menstration, menses |
cutane/o | skin |
hyster/o | uterus |
sinus | sinuses |
angi/o | vessel |
ventricul | ventricles |
laryng | voice box |
muscul/o | muscle |
neur/o | nerve |
ophthalm/o | eye |
scapul/o | shoulder blade |
abdomin/o | abdomen |
anter/o | front (side of body) |
brachi/o | arm |
caud/o | tail |
cervic/o | neck |
chondr/o | cartilage |
crani/o | skull |
cubit/o | elbow |
dist/o | farthest (away from beginning of structure) |
dors/o | back (side of body) |
femor/o | femur, thigh bone |
genit/o | genitals |
glute/o | buttocks |
infer/o | below, lower |
inguin/o | groin |
later/o | side |
lumb/o | low back |
medi/o | middle |
nas/o | nose |
orbit/o | eye socket |
or/o | mouth |
ot/o | ear |
patell/o | patella, kneecap |
proxim/o | nearest (to beginning of structure) |
pelv/o | pelvis |
poster/o | back (side of body) |
thorac/o | chest |
scapul/o | scapula, shoulder blade |
spin/o | spine |
stern/o | sternum, breast bone |
super/o | above, upper |
ventr/o | belly (side of body) |
vertebr/o | vertebra, back bone |
deep | further below from the surface |
prone | lie face down |
superficial | nearer the surface |
supine | lie face up |
axillary | underarm area |
lower extremity | the entire leg |
plantar | sole of foot |
palmer | palm of hand |
popliteal | creased area behind knee |
trunk | torso (excluding head and extremities) |
umbilical | region around navel |
upper extremity | the entire arm |
aden/o | gland |
adip/o | fat |
cyan/o | blue |
dermat/o | skin |
derm/o | skin |
hidr/o | sweat, water |
kerat/o | keratin, hard, hornlike |
lip/o | fat |
melan/o | melanin, black |
onych/o | nail |
py/o | pus |
seb/o | sebum, oil |
trich/o | hair |
ungu/o | nail |
bi/o | life |
chem/o | chemical |
cry/o | cold |
erythr/o | red |
ichthy/o | scaly |
leuk/o | white |
myc/o | fungus |
necr/o | death |
scler/o | hard |
vesic/o | bladder, sac |
xanth/o | yellow |
xer/o | dry |
burs/o | bursa |
carp/o | carpals (wrist) |
clavicul/o | clavicle (collar bone) |
coccyg/o | coccyx (tailbone) |
cost/o | rib |
fibul/o | fibula (thinner lower leg bone) |
humer/o | humorous (upper arm bone) |
ili/o | ilium (part of pelvis) |
ischi/o | ischium (part of pelvis) |
mandibul/o | mandible (lower jaw) |
maxill/o | maxilla (upper jaw) |
metacarp/o | metacarpus (hand bones) |
metatars/o | metatarsus (foot bones) |
myel/o | bone marrow |
phalang/o | phalanges (fingers and toes) |
pub/o | pubis (part of pelvis) |
radi/o | radius (part of forearm) |
sacr/o | sacrum |
spondyl/o | vertebra |
tars/o | tarsals (ankles) |
ten/o | tendon |
tendin/o | tendon |
tibi/o | tibia (shin, larger lower leg bone) |
uln/o | ulna (part of forearm) |
angi/o | vessel |
aort/o | aorta |
arteri/o | artery |
arteriol/o | arteriole |
ather/o | fatty substance, plaque |
atri/o | atrium |
coron/o | heart |
embol/o | plug |
isch/o | to keep back |
phleb/o | vein |
steth/o | chest |
thromb/o | clot |
valv/o | valve |
valvul/o | valve |
vari/o | dilated vein |
vascul/o | blood vessel |
vas/o | blood vessel |
ventricul/o | ventricle |
venul/o | venule |
esophag/o | esophagus |
pulmon/o | lung |
son/o | sound |
sphygm/o | pulse |
bas/o | base |
coagul/o | clotting |
eosin/o | rosy red |
erythr/o | red |
hem/o | blood |
hema/o | blood |
lymph/o | lymph |
neutr/o | neutral |
cyt/o | cell |
glyc/o | sugar |
path/o | disease |
septic/o | infection |
adenoid/o | adenoids |
immun/o | protection |
lymphaden/o | lymph node |
lymphangi/o | lymph vessel |
phag/o | eating |
splen/o | spleen |
thym/o | thymus |
tonsill/o | tonsils |
cortic/o | cortex |
system/o | system |
alveol/o | alveolus, air sac |
bronch/o | bronchus |
bronchi/o | bronchus |
bronchiol/o | bronchiole |
coni/o | dust |
lob/o | lobe |
mediastin/o | mediastinum |
ox/i | oxygen |
pleur/o | pleura |
pneum/o | lung, air |
pneumon/o | lung |
spir/o | breathing |
trache/o | trachea, windpipe |
arteri/o | artery |
atel/o | incomplete |
fibr/o | fibrous |
orth/o | straight |
balan/o | glans penis |
cyst/o | bladder |
epididym/o | epididymis |
glomerul/o | glomerulus |
lith/o | stone |
nephr/o | kidney |
orchid/o | testes |
orchi/o | testes |
orch/o | testes |
prostat/o | prostate gland |
pyel/o | renal pelvis |
ren/o | kidney |
semin/i | semen |
spermat/o | sperm |
sperm/o | sperm |
testicul/o | testicle |
ur/o | urine |
ureter/o | ureter |
urethr/o | urethra |
urin/o | urine |
vas/o | vas deferens |
vesicul/o | seminal vesicle |
albumin/o | albumin |
azot/o | nitrogen waste |
bacteri/o | bacteria |
corpor/o | body |
crytp/o | hidden |
glycos/o | sugar, glucose |
hemat/o | blood |
noct/i | night |
olig/o | scanty |
rect/o | rectum |
ven/o | vein |
amni/o | amnion |
cervic/o | neck, cervix |
chori/o | chorion |
colp/o | vagina |
embry/o | embryo |
episi/o | vulva |
fet/o | fetus |
gynec/o | woman, female |
lapar/o | abdomen |
mamm/o | breast |
mast/o | breast |
metr/o | uterus |
nat/o | birth |
o/o | egg |
oophor/o | ovary |
ovari/o | ovary |
salping/o | fallopian tubes, uterine tubes |
uter/o | uterus |
vagin/o | vagina |
cyst/o | bladder |
cerebell/o | cerebellum |
cerebr/o | cerebrum |
encephali/o | brain |
medull/o | medulla oblongata |
mening/o | meninges |
myel/o | spinal cord |
pont/o | pons |
thalam/o | thalamus |
lumb/o | low back |