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Medical Terminology/Word Parts
Root Words, Suffixes, Prefixes
538
Medical
Undergraduate 1
04/01/2009
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Term
adip/o
 Definition
fat
Term
albin/o
 Definition
white
Term
caus/o
 Definition
burning, burn
Term
cauter/o
 Definition
heat, burn
Term
derm/o
 Definition
skin
Term
dermat/o
 Definition
skin
Term
diaphor/o
 Definition
profuse sweating
Term
epiderm/o
 Definition
above the skin
Term
erythem/o
 Definition
redness
Term
hidr/o
 Definition
sweat
Term
ichthy/o
 Definition
scaly, dry
Term
kerat/o
 Definition
hard, horny tissue
Term
melan/o
 Definition
black
Term
myc/o
 Definition
fungus
Term
onych/o
 Definition
nail
Term
phyt/o
 Definition
plant
Term
pil/o
 Definition
hair
Term
seb/o
 Definition
sebum
Term
squam/o
 Definition
scale-like
Term
trich/o
 Definition
hair
Term
ungu/o
 Definition
nail
Term
xer/o
 Definition
dry
Term
-derma
 Definition
skin
Term
anthrac/o
 Definition
black as coal
Term
chlor/o
 Definition
green
Term
cirrh/o
 Definition
tawny yellow
Term
cyan/o
 Definition
blue
Term
eosin/o
 Definition
rosy
Term
erythr/o
 Definition
red
Term
jaund/o
 Definition
yellow
Term
lute/o
 Definition
yellow
Term
poli/o
 Definition
gray
Term
xanth/o
 Definition
yellow
Term
the/o
 Definition
to put, place
Term
top/o
 Definition
place, position, location
Term
-itis
 Definition
swelling, inflammation
Term
-megaly
 Definition
enlargement
Term
-ole
 Definition
little, small
Term
-osmia
 Definition
smell
Term
later/o
 Definition
side
Term
lumb/o
 Definition
back
Term
medi/o
 Definition
middle
Term
nephr/o
 Definition
kidney
Term
neur/o
 Definition
nerve
Term
nucle/o
 Definition
nucleus
Term
oste/o
 Definition
bone
Term
path/o
 Definition
disease
Term
pelv/o
 Definition
pelvis
Term
poster/o
 Definition
back, behind
Term
proxim/o
 Definition
nearest
Term
ren/o
 Definition
kidney
Term
sacr/o
 Definition
sacrum
Term
sarc/o
 Definition
flesh, connective tissue
Term
thorac/o
 Definition
chest
Term
trache/o
 Definition
trachea
Term
umbilic/o
 Definition
navel, umbilicus
Term
ur/o
 Definition
urinary tract, urine
Term
ventr/o
 Definition
belly side of the body
Term
vertebr/o
 Definition
vertebrae, backbones
Term
viscer/o
 Definition
internal organs
Term
-scope
 Definition
instrument to visually examine
Term
pub/o
 Definition
pubis
Term
somn/o
 Definition
sleep
Term
urethr/o
 Definition
urethra
Term
-plasty
 Definition
surgical repair
Term
-algia
 Definition
pain
Term
-cyte
 Definition
cell
Term
-ectomy
 Definition
excision, removal
Term
-emia
 Definition
blood condition
Term
-genic
 Definition
pertaining to; producing, produced by, produced in
Term
-gram
 Definition
record
Term
-ic, -ical
 Definition
pertaining to
Term
-ion
 Definition
process
Term
-ist
 Definition
specialist
Term
-logy
 Definition
study of
Term
-oma
 Definition
tumor, mass, swelling
Term
-opsy
 Definition
process of viewing
Term
-y
 Definition
process, condition
Term
-osis
 Definition
condition, usually abnormal
Term
-pathy
 Definition
disease condition
Term
-scopy
 Definition
process of visually examining
Term
-sis
 Definition
state of
Term
-tomy
 Definition
process of cutting; incision
Term
-eal
 Definition
pertaining to
Term
-iac
 Definition
pertaining to
Term
-ior
 Definition
pertaining to
Term
-ism
 Definition
process
Term
-ose
 Definition
pertaining to; full of
Term
-plasm
 Definition
formation
Term
-somes
 Definition
bodies
Term
-type
 Definition
picture, classification
Term
-cele
 Definition
hernia
Term
-centesis
 Definition
surgical puncture to remove fluid
Term
-coccus
 Definition
berry-shaped bacterium
Term
-dynia
 Definition
pain
Term
-er
 Definition
one who
Term
-genesis
 Definition
condition of producing, forming
Term
-graphy
 Definition
process of recording
Term
-graph
 Definition
instrument for recording
Term
-ia
 Definition
condition
Term
-lysis
 Definition
breakdown, destruction, separation
Term
-malacia
 Definition
softening
Term
morph/o
 Definition
shape, form
Term
mamm/o
 Definition
breast
Term
lapar/o
 Definition
abdomen, abdomen wall
Term
hydr/o
 Definition
water
Term
chron/o
 Definition
time
Term
blephar/o
 Definition
eyelid
Term
arteri/o
 Definition
artery
Term
inguin/o
 Definition
groin
Term
hist/o
 Definition
tissue
Term
hepat/o
 Definition
liver
Term
hem/o
 Definition
blood
Term
hemat/o
 Definition
blood
Term
gastr/o
 Definition
stomach
Term
enter/o
 Definition
intestines
Term
a-, an-
 Definition
no, not, without
Term
electr/o
 Definition
electricity
Term
dors/o
 Definition
back portion of body
Term
dist/o
 Definition
far, distant
Term
dermat/o
 Definition
skin
Term
derm/o
 Definition
skin
Term
cyt/o
 Definition
cell
Term
cyst/o
 Definition
urinary bladder, sac or cyst
Term
crani/o
 Definition
skull
Term
coccyg/o
 Definition
coccyx
Term
cis/o
 Definition
to cut
Term
chrom/o
 Definition
color
Term
chondr/o
 Definition
cartilage
Term
cervic/o
 Definition
neck
Term
cephal/o
 Definition
head
Term
cardi/o
 Definition
heart
Term
carcin/o
 Definition
cancer, cancerous
Term
bi/o
 Definition
life
Term
arthr/o
 Definition
joint
Term
anter/o
 Definition
front
Term
adip/o
 Definition
fat
Term
aden/o
 Definition
gland
Term
amni/o
 Definition
amnion
Term
acr/o
 Definition
extremities, top
Term
tonsill/o
 Definition
tonsils
Term
strept/o
 Definition
twisted chains
Term
splen/o
 Definition
spleen
Term
plas/o
 Definition
formation
Term
phleb/o
 Definition
vein
Term
peritone/o
 Definition
peritoneum
Term
opthalm/o
 Definition
eye
Term
necr/o
 Definition
death
Term
my/o
 Definition
muscle
Term
acu/o
 Definition
sharp, severe, sudden
Term
angi/o
 Definition
vessel
Term
ana-
 Definition
up
Term
auto-
 Definition
self
Term
ab-
 Definition
away from
Term
ad-
 Definition
toward
Term
ante-
 Definition
before, forward
Term
anti-
 Definition
against
Term
bi-
 Definition
two
Term
brady-
 Definition
slow
Term
cata-
 Definition
down
Term
con-
 Definition
with, together
Term
contra-
 Definition
against, opposite
Term
de-
 Definition
down, lack of
Term
dia-
 Definition
through, complete
Term
dys-
 Definition
bad, painful, difficult, abnormal
Term
axill/o
 Definition
armpit
Term
chem/o
 Definition
drug, chemical
Term
col/o
 Definition
colon
Term
isch/o
 Definition
to hold back
Term
lymph/o
 Definition
lymph
Term
mast/o
 Definition
breast
Term
ec-, ecto-
 Definition
out, outside
Term
en-, endo-
 Definition
in, within
Term
epi-
 Definition
above, up
Term
eu-
 Definition
good, normal
Term
ex-, exo-
 Definition
out
Term
hemi-
 Definition
half
Term
hyper-
 Definition
excessive, above; more than normal
Term
hypo-
 Definition
deficient, below; under, less than normal
Term
in-
 Definition
into, in
Term
inter-
 Definition
between
Term
intra-
 Definition
into, within
Term
macro-
 Definition
large
Term
mal-
 Definition
bad
Term
meta-
 Definition
change
Term
micro-
 Definition
small
Term
neo-
 Definition
new
Term
pan-
 Definition
all
Term
para-
 Definition
abnormal, beside, near
Term
per-
 Definition
through
Term
muc/o
 Definition
mucus
Term
myel/o
 Definition
spinal cord, bone marrow
Term
neutr/o
 Definition
neutrophil (type of white blood cell)
Term
peri-
 Definition
surrounding, around
Term
poly-
 Definition
many, much
Term
post-
 Definition
after, behind
Term
pre-
 Definition
before, in front of
Term
pro-
 Definition
before, forward
Term
pseud/o
 Definition
false
Term
re-
 Definition
back, forward, again
Term
retro-
 Definition
behind
Term
sub-
 Definition
below, under
Term
supra-
 Definition
above, upper
Term
syn-, sym-
 Definition
together, with
Term
tachy-
 Definition
fast
Term
trans-
 Definition
across, through
Term
ultra-
 Definition
beyond, excess
Term
uni-
 Definition
one
Term
-ac
 Definition
pertaining to
Term
ot/o
 Definition
ear
Term
phag/o
 Definition
to eat, swallow
Term
pleur/o
 Definition
pleura
Term
rect/o
 Definition
rectum
Term
staphyl/o
 Definition
clusters
Term
thromb/o
 Definition
clot
Term
ven/o
 Definition
vein
Term
-pnea
 Definition
breathing
Term
-ptosis
 Definition
drooping, sagging; prolapse
Term
-ptysis
 Definition
spitting
Term
-sclerosis
 Definition
hardening
Term
-stasis
 Definition
stopping, controlling
Term
-stomy
 Definition
opening to form a mouth (stoma)
Term
-therapy
 Definition
treatment
Term
-thorax
 Definition
chest, pleural cavity
Term
-trophy
 Definition
development, nourishment
Term
-ule
 Definition
little,small
Term
-um, -ium
 Definition
structure, tissue, thing
Term
-ac
 Definition
pertaining to
Term
-ary
 Definition
pertaining to
Term
-ous
 Definition
pertaining to
Term
-al
 Definition
pertaining to
Term
carp/o
 Definition
wrist bones
Term
cost/o
 Definition
rib
Term
dactyl/o
 Definition
fingers, toes
Term
flex/o
 Definition
to bend
Term
gloss/o
 Definition
tongue
Term
immun/o
 Definition
protection
Term
nat/i
 Definition
birth
Term
cib/o
 Definition
meals
Term
cutane/o
 Definition
skin
Term
duct/o
 Definition
to lead, carry
Term
furc/o
 Definition
forking, branching
Term
glyc/o
 Definition
sugar
Term
-penia
 Definition
deficiency
Term
-phobia
 Definition
fear
Term
-plasia
 Definition
development, formation, growth
Term
-ema
 Definition
condition
Term
-tic
 Definition
pertaining to
Term
-ar
 Definition
pertaining to
Term
-oid
 Definition
resembling
Term
-blast
 Definition
embryonic, immature
Term
-drome
 Definition
to run
Term
-gen
 Definition
producing, forming
Term
-meter
 Definition
to measure
Term
-or
 Definition
one who
Term
-phoria
 Definition
to bear, carry; feeling
Term
-type
 Definition
classification, type
Term
-cyesis
 Definition
pregnancy
Term
-fusion
 Definition
coming together, to pour
Term
-mission
 Definition
to send
Term
-partum
 Definition
birth, labor
Term
-physis
 Definition
to grow
Term
-rrhea
 Definition
flow, discharge
Term
abdomin/o
 Definition
abdomen
Term
mort/o
 Definition
death
Term
nect/o
 Definition
to bind, tie, connect
Term
norm/o
 Definition
rule, order
Term
seps/o
 Definition
infection
Term
son/o
 Definition
sound
Term
thyr/o
 Definition
shield, thyroid
Term
tox/o
 Definition
poison
Term
cerebell/o
 Definition
cerebellum
Term
cerebr/o
 Definition
cerebrum
Term
dur/o
 Definition
dura mater
Term
encephal/o
 Definition
brain
Term
gli/o
 Definition
glue
Term
lept/o
 Definition
thin, slender
Term
mening/o
 Definition
membranes, meninges
Term
meningi/o
 Definition
membranes, meninges
Term
pont/o
 Definition
pons
Term
radicul/o
 Definition
nerve root
Term
thalam/o
 Definition
thalamus
Term
thec/o
 Definition
sheath
Term
vag/o
 Definition
vagus nerve
Term
alges/o
 Definition
excessive
Term
-algesia
 Definition
sensitivity to pain
Term
-algia
 Definition
pain
Term
comat/o
 Definition
deep sleep
Term
esthesi/o
 Definition
feeling, nervous sensation
Term
-esthesia
 Definition
feeling, nervous sensation
Term
kines/o
 Definition
movement
Term
-kinesia
 Definition
movement
Term
-kinesis
 Definition
movement
Term
-lepsy
 Definition
seizure
Term
lex/o
 Definition
word/phrase
Term
-paresis
 Definition
slight paralysis
Term
-phasia
 Definition
speech
Term
-plegia
 Definition
paralysis
Term
-praxia
 Definition
action
Term
-sthenia
 Definition
strength
Term
syncop/o
 Definition
to cutoff, cut short
Term
tax/o
 Definition
order, coordination
Term
adren/o
 Definition
adrenal gland
Term
adrenal/o
 Definition
adrenal gland
Term
gonad/o
 Definition
sex glands
Term
pancreat/o
 Definition
pancreas
Term
parathyroid/o
 Definition
parathyroid gland
Term
pituitar/o
 Definition
pituitary gland
Term
thyroid/o
 Definition
thyroid gland
Term
andr/o
 Definition
male
Term
calc/o
 Definition
calcium
Term
cortic/o
 Definition
cortex, outer region
Term
crin/o
 Definition
secrete
Term
dips/o
 Definition
thirst
Term
estr/o
 Definition
female
Term
gluc/o
 Definition
sugar
Term
home/o
 Definition
sameness
Term
hormon/o
 Definition
hormone
Term
insulin/o
 Definition
insulin
Term
kal/i
 Definition
potassium
Term
lact/o
 Definition
milk
Term
myx/o
 Definition
mucus
Term
natr/o
 Definition
sodium
Term
phys/o
 Definition
growing
Term
somat/o
 Definition
body
Term
ster/o
 Definition
solid structure
Term
toc/o
 Definition
childbirth
Term
toxic/o
 Definition
poison
Term
-agon
 Definition
assemble, gather together
Term
-tropin
 Definition
stimulating the function of
Term
-uria
 Definition
urine condition
Term
oxy-
 Definition
rapid, sharp
Term
tetra-
 Definition
four
Term
tri-
 Definition
three
Term
aque/o
 Definition
water
Term
blephar/o
 Definition
eyelid
Term
conjunctiv/o
 Definition
conjunctiva
Term
cor/o
 Definition
pupil
Term
corne/o
 Definition
cornea
Term
cycl/o
 Definition
ciliary bodies
Term
dacry/o
 Definition
tears, tear ducts
Term
ir/o, irid/o
 Definition
iris
Term
lacrim/o
 Definition
tears
Term
ocul/o
 Definition
eye
Term
ophthalm/o
 Definition
eye
Term
opt/o, optic/o
 Definition
eye, vision
Term
papill/o
 Definition
optic disk
Term
pupill/o
 Definition
pupil
Term
retin/o
 Definition
retina
Term
scler/o
 Definition
sclera
Term
vitre/o
 Definition
glassy
Term
ambly/o
 Definition
dull, dim
Term
dipl/o
 Definition
two
Term
glauc/o
 Definition
gray
Term
mi/o
 Definition
smaller, less
Term
mydr/o
 Definition
widen, enlarge
Term
nyct/o
 Definition
night
Term
phot/o
 Definition
light
Term
presby/o
 Definition
old age
Term
eso-
 Definition
in
Term
-opia
 Definition
vision
Term
-opsia
 Definition
vision
Term
-tropia
 Definition
to turn
Term
acous/o
 Definition
hearing
Term
audi/o
 Definition
hearing
Term
audit/o
 Definition
hearing
Term
aur/o
 Definition
hearing
Term
auricul/o
 Definition
ear
Term
cochle/o
 Definition
cochlea
Term
mastoid/o
 Definition
mastoid process
Term
myring/o
 Definition
eardrum
Term
ossicul/o
 Definition
ossicles
Term
salping/o
 Definition
Eustachian tube
Term
staped/o
 Definition
stapes
Term
tympan/o
 Definition
eardrum
Term
vestibul/o
 Definition
vestibule
Term
-acusis, -cusis
 Definition
hearing
Term
-otia
 Definition
ear condition
Term
-ine, -in
 Definition
substance of
Term
amyl/o
 Definition
starch
Term
an/o
 Definition
anus
Term
append/o
 Definition
appendix
Term
bil/i
 Definition
bile
Term
bilirubin/o
 Definition
bilirubin
Term
bucc/o
 Definition
cheek
Term
cec/o
 Definition
cecum
Term
celi/o
 Definition
abdomen
Term
cheil/o
 Definition
lip
Term
chlorohydr/o
 Definition
hydrochloric acid
Term
chol/e
 Definition
gall, bile
Term
cholecyst/o
 Definition
gallbladder
Term
choledoch/o
 Definition
common bile duct
Term
colon/o
 Definition
colon
Term
dent/i
 Definition
tooth
Term
duoden/o
 Definition
duodenum
Term
esophag/o
 Definition
esophagus
Term
faci/o
 Definition
face
Term
gingiv/o
 Definition
gums
Term
gluc/o
 Definition
sugar
Term
glyc/o
 Definition
sugar
Term
glycogen/o
 Definition
glycogen
Term
ile/o
 Definition
ileum (3rd part)
Term
jejun/o
 Definition
jejeunum (2nd part)
Term
labi/o
 Definition
lips
Term
ling/u
 Definition
tongue
Term
lip/o
 Definition
fat, lipid
Term
lith/o
 Definition
stone
Term
mandibul/o
 Definition
lower jaw
Term
odont/o
 Definition
tooth
Term
or/o
 Definition
mouth
Term
palat/o
 Definition
palate
Term
pancreat/o
 Definition
pancreas
Term
peritone/o
 Definition
peritoneum
Term
pharyng/o
 Definition
throat
Term
proct/o
 Definition
anus, rectum
Term
prote/o
 Definition
protein
Term
pylor/o
 Definition
pyloric sphincter
Term
sial/o
 Definition
saliva, salivary
Term
sialaden/o
 Definition
salivary gland
Term
sigmoid/o
 Definition
sigmoid colon
Term
steat/o
 Definition
fat
Term
-ase
 Definition
enzyme
Term
-chezia
 Definition
defecation
Term
-ectasis
 Definition
stretching, dilation
Term
-ectasia
 Definition
dilation
Term
-emesis
 Definition
vomiting
Term
-iasis
 Definition
abnormal condition
Term
-pepsia
 Definition
digestion
Term
-phagia
 Definition
eating, swallowing
Term
-prandial
 Definition
meal
Term
-rrhage
 Definition
bursting forth
Term
-rrhagia
 Definition
bursting forth
Term
-rrhaphy
 Definition
suture
Term
-spasm
 Definition
spasm
Term
-stenosis
 Definition
tightening, stricture, narrowing
Term
-tresia
 Definition
opening
Term
cali/o, calic/o
 Definition
calyx
Term
glomerul/o
 Definition
glomerulus
Term
meat/o
 Definition
meatus
Term
pyel/o
 Definition
renal pelvis
Term
trigon/o
 Definition
trigone
Term
ureter/o
 Definition
ureter
Term
vesic/o
 Definition
urinary bladder
Term
albumin/o
 Definition
albumin
Term
bacteri/o
 Definition
bacteria
Term
ket/o, keton/o
 Definition
ketone bodies
Term
noct/i
 Definition
night
Term
olig/o
 Definition
scanty
Term
-poeitin
 Definition
substance that forms
Term
py/o
 Definition
pus
Term
-tripsy
 Definition
to crush
Term
urin/o
 Definition
urine
Term
* ARF
 Definition
acute renal failure
Term
* BUN
 Definition
blood urea nitrogen
Term
* cath
 Definition
catheterize or catheterization (slang)
Term
* CRF
 Definition
chronic renal failure
Term
* ESWL
 Definition
extracorporeal shock wave lithotripsy
Term
* ESRD
 Definition
end-stage renal disease
Term
* I & O
 Definition
intake and output
Term
* KUB
 Definition
kidneys, ureters, bladder
Term
* pH
 Definition
potential of hydrogen (acidity or alkalinity)
Term
* SG, sp gr
 Definition
specific gravity
Term
* UA
 Definition
urinalysis
Term
* UTI
 Definition
urinary tract infection
Term
cali/o, calic/o
 Definition
calyx
Term
glomerul/o
 Definition
glomerulus
Term
meat/o
 Definition
meatus
Term
pyel/o
 Definition
renal pelvis
Term
trigon/o
 Definition
trigone
Term
ureter/o
 Definition
ureter
Term
vesic/o
 Definition
urinary bladder
Term
albumin/o
 Definition
albumin
Term
bacteri/o
 Definition
bacteria
Term
ket/o, keton/o
 Definition
ketone bodies
Term
noct/i
 Definition
night
Term
olig/o
 Definition
scanty
Term
-poeitin
 Definition
substance that forms
Term
py/o
 Definition
pus
Term
-tripsy
 Definition
to crush
Term
urin/o
 Definition
urine
Term
* ARF
 Definition
acute renal failure
Term
* BUN
 Definition
blood urea nitrogen
Term
* cath
 Definition
catheterize or catheterization (slang)
Term
* CRF
 Definition
chronic renal failure
Term
* ESWL
 Definition
extracorporeal shock wave lithotripsy
Term
* ESRD
 Definition
end-stage renal disease
Term
* I & O
 Definition
intake and output
Term
* KUB
 Definition
kidneys, ureters, bladder
Term
* pH
 Definition
potential of hydrogen (acidity or alkalinity)
Term
* SG, sp gr
 Definition
specific gravity
Term
* UA
 Definition
urinalysis
Term
* UTI
 Definition
urinary tract infection
Term
alveol/o
 Definition
small sac
Term
cry/o
 Definition
cold
Term
fibr/o
 Definition
fibers
Term
medull/o
 Definition
soft, inner part
Term
mucos/o
 Definition
mucous
Term
mut/a
 Definition
genetic change
Term
mutagen/o
 Definition
causing genetic change
Term
onc/o
 Definition
tumor
Term
pharmac/o
 Definition
chemical, drug
Term
polyp/o
 Definition
polyp
Term
radi/o
 Definition
x-rays
Term
-blastoma
 Definition
immature tumor
Term
-genesis
 Definition
formation
Term
-suppression
 Definition
to stop
Term
apo-
 Definition
off, away
Term
brachy-
 Definition
near
Term
epi-
 Definition
upon (pt skin)
Term
tele-
 Definition
far
Term
fluor/o
 Definition
luminous, fluorescence
Term
roentgen/o
 Definition
x-rays
Term
son/o
 Definition
sound
Term
therapeut/o
 Definition
treatment
Term
tom/o
 Definition
to cut
Term
virt/o
 Definition
glass
Term
viv/o
 Definition
life
Term
-lucent
 Definition
to shine
Term
-opaque
 Definition
obscure
Term
cine-
 Definition
movement
Term
echo-
 Definition
repeated sound
Term
fung/i
 Definition
fungus
Term
* Bx
 Definition
biopsy
Term
* Ca
 Definition
carcinoma, cancer
Term
* chemo
 Definition
chemotherapy drug
Term
* DNA
 Definition
deoxyribonucleic acid
Term
* PSA
 Definition
prostate-specific antigen
Term
* RNA
 Definition
ribonucleic acid
Term
* CAT
 Definition
computerized axial tomography
Term
* CT
 Definition
computerized tomography
Term
* CXR
 Definition
chest x-ray
Term
* DEXA
 Definition
dual energy x-ray absorptiometry
Term
* KUB
 Definition
kidneys, ureters, bladder
Term
* Lat
 Definition
lateral
Term
* PA
 Definition
posteranterior
Term
* PET
 Definition
positron emission tomography
Term
* UGI
 Definition
upper gastrointestinal (GI) series
Term
* US
 Definition
ultrasound
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