Prefixes + Meaning

Medical Terminology for Interpreters, 4th edition | Culture & Language Press

a-, an-

without, absence of, not

ana-

up, upward; apart; back, backward

ab-

away from

ad-

toward

allo/o, all-

other, different from normal, reversal

anti-

against

auto-

self

bi-

twice

brady-

slow

circum-

around

contra-

against

de-

reverse, from, down

en-/endo-

in, inside

epi-

over, upon

ex-, exo-, extra-

out, outside

hemi-

half, one side

hyper-

excessive

hypo-

less than normal

inter-

between

intra-

inside

ipsi-

same

mal-

poor, bad

meta-

change, beyond, over, after

micro-

small

multi-

many, several

neo-

new

orth/o

straight, normal, correct

para-

near, similar

peri-

surrounding, around

poly-

many

post-

after

pre-

before

pro-

for, before

pseudo-

false

retro-

back, behind, pulling backward

sub-

below, beneath

tachy-

fast

trans-

across, through