Prefixes

prefixes of medical terminology

a-, an-

without, not

anti-

against

bi-

two, double

brady-

slow

dys-

bad, difficult, painful

endo-

within, inside

epi-

above

eu-

good, normal

hemat/o

blood

hemi-

one half

hyper-

above normal, excessive, high

hypo-

below, beneath, low

intra-

inside, within

mal-

bad

neo-

new

peri-

around, surroundingp

poly-

excessive, many

post-

after

pre-

before

sub-

less than normal, below, underneaths

supra-

above

tachy-

rapid

Polio-

grey

cyan

blue

erythr/o

red

leuk/o

white

melan/o

black

ab-

away from, negative, absent

dextr/o

right side

ex-

out of, outside, away from

macro-

large, abnormal size, long

mega-, megal/o

large, great

ad-

toward, to, in the direction of

sinistr/o

left side

in-

in, into, not, without

micr/o-, micro-

small

olig/o

scanty, few

inter-

between or among

super-, supra-

above or excessive

lith-

stone