Medical Terminology Prefixes, Suffixes, and Combining Forms

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Prefixes, suffixes, and combining forms in medical terminology.

-ac

pertaining to

-al

pertaining to

-ar

pertaining to

-ary

pertaining to

-ic

pertaining to

-ine

pertaining to

-ive

pertaining to

-ous

pertaining to

-ation

process; being or having

-ion

action; condition

-lysis

process of breaking down or destroying

-ism

process; disease from a specific cause

-ia

condition; state; thing

-itis

inflammation of; infection of

-megaly

enlargement

-oma

tumor; mass

-osis

condition; abnormal condition; process

-pathy

disease; suffering

-ectomy

a surgical excision

-gram

a record or picture

-graphy

process of recording

-metry

process of measuring

-scope

instrument used to examine

-scopy

process of using an instrument to examine

-stomy

surgically created opening

-therapy

treatment

-tomy

process of cutting or making an incision

-iatry

medical treatment

-ist

one who specializes in

-logy

the study of

endo-

innermost; within

epi-

above; upon

inter-

between

intra-

within

peri-

around

post-

after; behind

pre-

before; in front of

sub-

below; underneath; less than

trans-

across; through

brady-

slow

hemi-

one half

hyper-

above; more than normal

hypo-

below; deficient

mono-

one; single

poly-

many; much

quadri-

four

tachy-

fast

tri-

three

a-

away from; without

an-

without; not

anti-

against

de-

reversal of; without

dys-

painful; difficult; abnormal

eu-

normal; good

mal-

bad; inadequate

re-

again and again

abdomin/o-

abdomen

append/o-

appendix

arteri/o-

artery

intestin/o-

intestine

laryng/o-

larynx

muscul/o-

muscle

thyroid/o-

thyroid gland

tonsill/o-

tonsil

ven/o-

vein

arthr/o-

joint

cardi/o-

heart

derm/o-

skin

gastr/o-

stomach

mamm/o-

breast

nas/o-

nose

psych/o-

mind

cholecyst/o-

gallbladder

cost/o-

rib

enter/o-

intestine

hepat/o-

liver

hyster/o-

uterus

lapar/o-

abdomen

urin/o-

urine; urinary system

pelv/o-

pelvis

uter/o-

uterus

digest/o-

break down food; digest

hem/o-

blood

pneumon/o-

lung; air

neur/o-

nerve

spir/o-

breathe

colon/o-

colon

col/o-

colon

therap/o-

treatment

nutri/o-

nourishment

phag/o-

eating; swallowing

trache/o-

trachea

menstru/o-

monthly discharge of blood

cutane/o-

skin

vagin/o-

vagina

later/o-

side

card/i-

heart

pleg/o-

paralysis

tens/o-

pressure

nucle/o-

nucleus

gemin/o-

set or group

sperm/o-

sperm

esthes/o-

sensation; feeling

bi/o-

living organisms

ment/o-

mind

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