EMT Course: Medical Terminology Prefixes

contra

against

cost

rib

cyt

cell

de

down from

di

twice/double

dia

through

dys

painful/abnormal/difficult

ect

out from

endo

within/inside

epi

on/upon

eu

good/well/normal

ex

removal/out/outside of

extra

outside of

glyc

sugar

hemat

blood

heter

different/other

hyper

over/excessive

hypo

under/deficient

in

in/into/inside

peri

around

phag

eating/swallowing

phleb

vein

poly

many

post

after/behind//following

pre

before/in front of/forward

pre

before

pyel

kidney/pelvis

retr/o

behind/backward

scler

hard/sclera

semi

half/partial

sub

beneath/nearly/downward

supra

more/above/excess

supra

above

tachy

fast

therm

temperature

trans

across/throug/beyond

ultra

beyond/in excess

vas/o

vessel

a/an-

to lack/without

ab-

away from/off

abdom-

abdominal

ad-

toward/to

ana-

up/back/again

angio-

vessel

ante-

before

anti-

against

auto-

self

bi-

two

bio-

life

brady-

slow

calc-

stone

cardi-

heart

cephal-

head

cerbr-

brain

chondr-

cartilage

infra-

beneath/lower/below

inter-

between

intra-

within/inside of

iso-

equal

lith-

stone

mal-

bad/abnormal

my/o-

muscle

necr-

death

olig-

scant/deficient

oro-

mouth

ortho-

straight/normal

oto-

ear

pan-

all

para-

by the side

path/o-

disease

pepsia-

digestion

per-

through/very/excess