Lesson 1 Medical Terminology

a- (an-)

not without, lacking, deficient

anti-

against, opposed to, preventing, relieving

di-

two, twice, double

dys-

difficult, painful, defective, abnormal

ec-

out of, away from

ecto-

outside of

en-

in, into, within

endo-, ecto-

within

epi-

upon, over, above

exo-

outside, from the outside, toward the outside

hemi-

half, partial; one side of the body

hyper-

over, above, excessive, beyond normal

hypo-

under, deficient, below normal

mono-

one, single

peri-

around, surrounding

syn-

together, with, joined

-ac (rare) and -ic

pertaining to, located in

-ia

state, condition

-iac (rare)

person afflicted with

-iasis and -osis

disease, abnormal condition

-in, -ine

form names of substances

-ist

a person interested in

-itic

pertaining to

-itis

inflamed condition, inflammation

-ium

membrane, connective tissue

-ma

abnormal or diseased condition

-sia

state, condition

-sis and -y

state, condition, quality, process, procedure

-tic

often indicates a drug or agent

Acanth-

thorn, spine

Alg-

pain

Alges-

sensitivity to pain

All-

other, diverence from

Angi-

(blood) vessel, duct

Arteri-

artery

Arthr-

joint

Bi-

life

Brady-

slow

Cardi-

heart

cephal-

head

crani-

skull

cyt-

cell

encephal-

brain

erythr-

red blood cell

Lept-

thin, fine, slight

Leuk-

white blood cell

Lith-

stone, calculus

Log-

word, study

Malac-

soft

Mes-

middle, secondary, partial, mesentary

-meter, metr-

measure, measuring device

nephr-

kidney

neur-

nerve, nevous system

oste-

bone

Prax-

act, action

Prot-

first, primitive, early

scler-

hard

Sten-

narrow

stere-

solid, having three dimensions

tachy-

rapid

tox(i)-

poison

-logy

study, science

-logist

one who specializes in a certain study or science