|
Word Root
|
Definition
|
|
abdomin/o
|
abdomen
|
|
acous, acus
|
sound, hearing
|
|
acro
|
extremity, end
|
|
aden/o
|
gland
|
|
adip/o
|
fat
|
|
adren/o
|
adrenal gland, epinephrine
|
|
adrenal/o
|
adrenal gland
|
|
adrenocortic/o
|
adrenal cortex
|
|
aer/o
|
air, gas
|
|
alg/o, algi/o, algesi/o
|
pain
|
|
amino
|
amnion, embryo membrane
|
|
amyl/o
|
starch
|
|
andr/o
|
male
|
|
angi/o
|
vessel
|
|
an/o
|
anus
|
|
aort/o
|
aorta
|
|
ater/o, arteri/o
|
artery
|
|
arteriol/o
|
arteriole
|
|
arthr/o
|
joint
|
|
atel/o
|
incomplete, imperfect
|
|
atlant/o
|
atlas
|
|
atri/o
|
atrium
|
|
audi/o
|
hearing
|
|
azot/o
|
nitrogenous compound
|
|
bacill/i, bacill/o
|
bacillus, rod-shaped bacteria
|
|
bacteri/o
|
bacterium
|
|
balan/o
|
glans penis
|
|
bar/o
|
pressure
|
|
bili
|
bile
|
|
bio
|
life
|
|
blast/o
|
immature cell, productive cell, embryonic cell
|
|
blephar/o, palpebr/o
|
eyelid
|
|
brachi/o
|
arm
|
|
bronch/i, bronch/o
|
bronchus
|
|
bronchiol
|
bronchiole
|
|
bucc/o
|
cheek
|
|
burs/o
|
bursa, joint cushion
|
|
calc/i
|
calcium
|
|
cali/o, calic/o
|
calyx, urine tube
|
|
carcin/o
|
cancer, carcinoma
|
|
cardi/o
|
heart
|
|
cec/o
|
cecum, first large intestione region
|
|
celi/o
|
abdomen
|
|
centesis
|
puntcure, tap
|
|
cephal/o
|
head
|
|
cerebell/o
|
cerebellum
|
|
cerebr/o
|
cerebrum
|
|
cervic/o
|
neck, cervix
|
|
cheil/o
|
lip
|
|
chem/o
|
chemical
|
|
chir/o
|
hand
|
|
cholangi/o
|
bile duct
|
|
chol/e, chol/o
|
bile, gall
|
|
cholecyst/o
|
gallbladder
|
|
choledoch/o
|
common bile duct
|
|
chondr/o
|
cartilage
|
|
chori/o, choroid/o
|
choroid
|
|
chrom/o, chromat/o
|
color, stain
|
|
chron/o
|
time
|
|
clasis
|
breaking
|
|
clitor/o, clitorid/o
|
clitoris
|
|
coccy, coccyg/o
|
coccyx
|
|
cochle/o
|
cochlea in the inner ear
|
|
col/o, colon/o
|
colon
|
|
colp/o
|
vagina
|
|
copro
|
feces
|
|
cor/o, cor/e, pupill/o
|
pupil
|
|
corne/o
|
cornea
|
|
cortic/o
|
outer portion, cerebral cortex
|
|
cost/o
|
rib
|
|
crani/o
|
skull, cranium
|
|
cry/o
|
cold
|
|
crypt/o
|
hidden
|
|
cus
|
sound, hearing
|
|
cycl/o
|
ciliary body, ciliary muscle of the eye
|
|
cyst/o
|
filled sac or pouch, cyst, bladder, urinary bladder
|
|
cyt/o
|
cell
|
|
dacry/o
|
tear, lacrimal apparatus
|
|
dacryocyst/o
|
lacrimal sac
|
|
dactyl/o
|
finger, toe
|
|
dent/o, dent/i
|
tooth, teeth
|
|
derm/o, dermat/o
|
skin
|
|
dilation, dilatation
|
expanision, widening
|
|
duoden/o
|
duodenum
|
|
dynam/o
|
force, energy
|
|
ectasia, ectasis
|
dilation, dilatation, distension
|
|
edema
|
accumulation of fluid, swelling
|
|
electr/o
|
electricity
|
|
embry/o
|
embryo
|
|
emesis
|
vomiting
|
|
encephal/o
|
brain
|
|
endocrin/o
|
endocrine system
|
|
enter/o
|
intestine
|
|
epididym/o
|
epididymis
|
|
episi/o
|
vulva
|
|
erg/o
|
work
|
|
erythr/o-
|
red, red blood cell
|
|
erythrocyt/o
|
red blood cell
|
|
esophag/o
|
esophagus
|
|
fasci/o
|
fascia, layer of connective tissue
|
|
fer
|
carry
|
|
ferr/i, ferr/o
|
iron
|
|
fet/o
|
fetus
|
|
fibr/o
|
fiber
|
|
galact/o
|
milk
|
|
gangli/o, ganglion/o
|
ganglion, a cyst near joints/tendons
|
|
gastr/o
|
stomach
|
|
gen
|
origin, formation
|
|
ger/e, ger/o
|
old age
|
|
gingiv/o
|
gum, gingiva
|
|
gli/o
|
neuroglia
|
|
glomerul/o
|
glomerulus, kidney
|
|
gloss/o
|
tongue
|
|
gluc/o
|
glucose
|
|
glyc/o
|
sugar, glucose
|
|
gnath/o
|
jaw
|
|
goni/o
|
angle
|
|
gravida
|
pregnant woman
|
|
gyn/o, gynec/o
|
woman
|
|
hem/o, hemat/o
|
blood
|
|
hepat/o
|
liver
|
|
hidr/o
|
sweat, perspiration
|
|
hist/o, histi/o
|
tissue
|
|
hydr/o
|
water, fluid
|
|
hypn/o
|
sleep
|
|
hypophysi/o
|
pituitary gland, hypophysis
|
|
hyster/o
|
uterus
|
|
iatr/o
|
physician
|
|
ile/o
|
ileum
|
|
ili/o
|
ilium
|
|
immun/o
|
immunity, immune system
|
|
in/o
|
fiber, muscle fiber
|
|
insul/o
|
pancreatic islets
|
|
ir, irit/o, irid/o
|
iris
|
|
jejun/o
|
jejunum
|
|
kali
|
potassium
|
|
kary/o
|
nucleus
|
|
kerat/o
|
cornea, keratin, horny layer of skin
|
|
kin/o, kine, kinesi/o, kinet/o
|
movement
|
|
labi/o
|
lip
|
|
labyrinth/o
|
labyrinth of the inner ear
|
|
lacrim/o
|
tear, lacrimal apparatus
|
|
lact/o
|
milk
|
|
lapar/o
|
abdominal wall
|
|
laryng/o
|
larynx
|
|
lent/i
|
lens
|
|
leuk/o
|
white, colorless, white blood cell
|
|
leukocyt/o
|
white blood cell
|
|
lingu/o
|
tongue
|
|
lip/o
|
fat, lipid
|
|
listhesis
|
slipping
|
|
lith
|
calculus, stone
|
|
lumb/o
|
lumbar region, lower back
|
|
lymphaden/o
|
lymph node
|
|
lymphangi/o
|
lymphatic vessel
|
|
lymph/o, lymphocyt/o
|
lymph, lymphatic system, lymphocyte
|
|
lysis
|
separation, looseningm dissolving, destruction
|
|
malacia
|
softening
|
|
mamm/o
|
breast, mammary gland
|
|
mania
|
excited state, obsession
|
|
mast/o
|
breast, mammary gland
|
|
medull/o
|
inner part, medulla oblongata, spinal cord
|
|
melan/o
|
dark, black, melanin
|
|
mening/o, meninge/o
|
meninges
|
|
men/o, mens
|
month, mestruation
|
|
metr/o, metr/i
|
measure, uterus
|
|
morph/o
|
form, structure
|
|
muc/o, myx/o
|
mucous membrane, mucus
|
|
muscul/o, my/o
|
muscle
|
|
myc/o
|
fungus, mold
|
|
myel/o
|
bone marrow, spinal cord
|
|
myring/o
|
tympanic membrane
|
|
narc/o
|
stupor, unconsciousness
|
|
nas/o, rhin/o
|
nose
|
|
nat/i
|
birth
|
|
natri
|
sodium
|
|
necrosis
|
death of tissue
|
|
nephr/o
|
kidney
|
|
neur/o, neur/i
|
nervous system, nerve
|
|
noct/i, nyct/o
|
night, darkness
|
|
nucle/o
|
nucleus
|
|
ocul/o, ophthalm/o, opt/o
|
eye, vision
|
|
odont/o
|
tooth, teeth
|
|
onc/o
|
tumor
|
|
onych/o
|
nail
|
|
oo, ov/o, ovul/o
|
ovum
|
|
oophor/o, ovari/o
|
ovary
|
|
orchid/o, orchi/o
|
testis
|
|
or/o
|
mouth
|
|
osche/o
|
scrotum
|
|
osm/o
|
smell
|
|
oste/o
|
bone
|
|
ot/o
|
ear
|
|
ox/y
|
oxygen, sharp, acute
|
|
palat/o
|
palate, roof of mouth
|
|
pancreat/o
|
pancreas
|
|
papill/o
|
nipple
|
|
para
|
woman who has given birth
|
|
parathyr/o, parathyroid/o
|
parathyroid
|
|
paresis
|
partial paralysis, weakness
|
|
path/o
|
disease, any disease of
|
|
ped/o
|
foot, child
|
|
pelvi/o
|
pelvis
|
|
perine/o
|
perineum
|
|
periton, peritone/o
|
peritoneum
|
|
phac/o, phak/o
|
lens
|
|
phag/o
|
eat, ingest
|
|
pharm, pharmac/o
|
drug, medicine
|
|
pharyng/o
|
pharynx
|
|
phil
|
attracting, absorbing
|
|
phleb/o
|
vein
|
|
phobia
|
fear
|
|
phon/o
|
sound, voice
|
|
phot/o
|
light
|
|
phren/o
|
diaphragm
|
|
phrenic/o
|
phrenic nerve
|
|
phyt/o
|
plant
|
|
pituitar/i
|
pituitary, hypophysis
|
|
plas
|
formation, molding, development
|
|
pleur/o
|
pleura
|
|
pneum/o, pneumat/o
|
air, gas, lung, respiration
|
|
pneumon/o, pulm/o, pulmon/o
|
lung
|
|
pod/o
|
foot
|
|
proct/o
|
rectum
|
|
prostat/o
|
prostate
|
|
prote/o
|
protein
|
|
psych/o
|
mind
|
|
ptosis
|
dropping, downward, displacement, prolapse
|
|
ptysis
|
spitting
|
|
puer
|
child
|
|
pyel/o
|
renal pelvis
|
|
pylor/o
|
pylorus, stomach and duodenum connection
|
|
py/o
|
pus
|
|
pyr/o, pyret/o
|
fever, fine
|
|
rachi/o
|
spine
|
|
radicul/o
|
root of spinal nerve
|
|
radi/o
|
radiation, x-ray
|
|
rect/o
|
rectum
|
|
ren/o
|
kidney
|
|
reticul/o
|
network
|
|
retin/o
|
retina
|
|
rhabd/o
|
rod, muscle cell
|
|
sacchar/o
|
sugar
|
|
sacr/o
|
sacrum
|
|
salping/o
|
tube, uterine tube, auditory (eustachian) tube
|
|
schisis
|
fissure
|
|
scler/o
|
hard, sclera of the eye
|
|
sclerosis
|
hardening
|
|
seb/o
|
sebum, sebaceous gland
|
|
semin
|
semen
|
|
sept/o
|
septum, partition, dividing wall
|
|
sial/o
|
saliva, salivary gland, salivary duct
|
|
sider/o
|
iron
|
|
sigmoid/o
|
sigmoid colon
|
|
skelet/o
|
skeleton
|
|
somat/o
|
body
|
|
somn/i, somn/o
|
sleep
|
|
son/o
|
sound, ultrasound
|
|
spasm
|
sudden contraction, cramp
|
|
sperm/i, spermat/o
|
semen, spermatoza
|
|
sphygm/o
|
pulse
|
|
spir/o
|
breathing
|
|
splen/o
|
spleen
|
|
spondyl/o
|
vertebra
|
|
staped/o, stapedi/o
|
stapes in the ear
|
|
stasis
|
suppression, stoppage
|
|
steat/o
|
fatty
|
|
stenosis
|
narrowing, constriction
|
|
steth/o
|
chest
|
|
sthen/o
|
strength
|
|
stoma, stomat/o
|
mouth
|
|
synov/i
|
synovial joint, synovial membrane
|
|
tax/o
|
order, arrangement
|
|
ten/o, tendin/o
|
tendon
|
|
terat/o
|
malformed fetus
|
|
test/o
|
testis, testicle
|
|
thalam/o
|
thalamus
|
|
therm/o
|
heat, temperature
|
|
thorac/o
|
chest, thorax
|
|
thromb/o
|
blood clot
|
|
thrombocyt/o
|
platelet, thrombocyte
|
|
thym/o
|
thymus gland
|
|
thyr/o, thyroid/o
|
thyroid
|
|
toc/o
|
labor
|
|
ton/o
|
tone
|
|
tonsil/o
|
tonsil
|
|
tox/o, toxic/o
|
poison, toxin
|
|
trache/o
|
trachea
|
|
trich/o
|
hair
|
|
trop/o
|
turning
|
|
trop
|
acting on, affecting
|
|
troph/o
|
feeding, growth, nourishment
|
|
tympan/o
|
tympanic cavity of the middle ear, tympanic membrane
|
|
ureter/o
|
ureter
|
|
urethr/o
|
urethra
|
|
urin/o, ur/o
|
urine, urinary tract
|
|
uter/o
|
uterus
|
|
uve/o
|
uvea of the eye
|
|
uvul/o
|
uvula
|
|
vagin/o
|
sheath, vagina
|
|
valv/o, valvul/o
|
valve
|
|
varic/o
|
twisted and swollen vein, varix
|
|
vascul/o
|
vessel
|
|
vas/o
|
vessel, duct, vas deferens
|
|
ven/o, ven/i
|
vein
|
|
ventricul/o
|
cavity, ventricle
|
|
vertebr/o
|
vertebra, spinal column
|
|
vesic/o
|
urinary bladder
|
|
vesicul/o
|
seminal vesicle
|
|
vestibul/o
|
vestibule, vestibular apparatus of the ear
|
|
vir/o
|
virus
|
|
vulv/o
|
vulva
|
|
xen/o
|
foreign, strange
|
|
