Scientific and Medical Terminology

a- an-

not, without, lacking, deficient

anti- ant-

against, opposed to, preventing, relieving

di- dis-

two, twice, double

dys-

difficult, painful, defective, abnormal

ec- ex-

out of, away from

ecto-

outside of

en- em-

in, into, witin

endo- ento-

within

epi-

upon, over, above

exo-

outside, form 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- sym-

together, with, joined

-a

state, condition

-ac

pertaining to, located in

=oa

state, condition

-iac

person afflicted with

-iasis

disease, abnormal condition, abnormal presence of, often used with name of parasitic oragnism to indicate infestation

-ic

pertaining to, located in, often indicates drug or agent or to a person suffering from a condition

-in -ine

forms name of substance

-ist

person interested in

-itic

pertaining to, pertaining to inflammation, often indicates drug or agent

-itis

indicating an inflamed condition, inflamation

-itides

plural form for nouns ending it -itis, inflamation

-ium -eum

membrane, connective tissue

-ma

abnormal or diseased condition

-osis

abnormal or idseased condition

-otic

pertaining to

-sia

state, condition

-sis

state, condition, quality, process, procedure

acanth-

thorn, spine

alg-

pain

alges-

sensitivity to pain

all-

other, divergence, difference 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, red blood cell

lept

thin, fine, slight

leuk-

white, white blood cell

lith-

stone, calculus

log-

word, study

malac-

soft

mes-

middle, secondary, partial, mesentery

-meter metr-

measure, measuring devicem

nephr-

kidney

neur-

nerve, nervous systemost

oste-

bonepra

prax-

act, actionpro

prot-

firt, primitive, early

scler-

hard

sten-

narrow

stere-

solid, having three dimenstions

tachy-

rapid

tox(i)-

poison

-logy

studym science, the study or science of

-logist

one who specalizes in a certain study or science

-malacia

the softening (of tissues) of

-sclerosis

the hardening (of tissues) of

stenosis

the narrowing (of a part of the body)

-toxic

poisonous (to an organ)

-toxin

a substance poisonous to (a part of the body)

amphi- ampho-

on both sides, around, both

ana-

up, back, against

apo-

away from

cata-

downward

dia-

through, across, apart

eso-

within, inner, inward

eu-

good, normal, healthy

heter- hetero-

different, other, relationship to another

homo- homeo-

same, likeness

meta- met-

change, transformation, after, behind

para-

alongside, around, abnormal, beyond

pro-

before

pros- prosth-

in place of

-al

pertaining to, located in

-ase

forms names of enzymes

-asia -asis

state, condition

-ema -emat

state, condition

-esis

state, condition, procedure

-etic -esis

pertaining to

-ics

science or study of

-ism

state, condition, quality

-ismus

state, condition, muscular spasm

-oid -ode -id

like, resembling

-oma -omat -omata

tumor, disease

-ose

used to form names of chemical substances

-ous

pertaining to, characterized by, full of

-tics

science of study of

-us

condition, person