Medical Prefix

Front 1

a-, an-

Back 1

without

Front 2

ante-, pre-, pro-

Back 2

before

Front 3

anti-, contra-

Back 3

against

Front 4

bi-, diplo-

Back 4

two

Front 5

brady-

Back 5

slow

Front 6

circum-

Back 6

around

Front 7

de-

Back 7

away from

Front 8

dia-, trans-

Back 8

through

Front 9

dys-

Back 9

abnormal, painful, difficult

Front 10

ecto-

Back 10

outside

Front 11

endo-

Back 11

within

Front 12

epi-

Back 12

upon, over

Front 13

eu-

Back 13

normal, good

Front 14

ex-, exo-, extra-

Back 14

out of, away from, outside

Front 15

hemi-, semi-

Back 15

half

Front 16

hyper-, poly-

Back 16

above normal, excessive

Front 17

hypo-, sub-

Back 17

below normal, below, underneath, inferior

Front 18

inter-

Back 18

between

Front 19

intra-

Back 19

within

Front 20

iso-

Back 20

same

Front 21

mal-

Back 21

bad, not adequate

Front 22

magalo-, mega-, macro-

Back 22

small, tiny

Front 23

mono-

Back 23

one

Front 24

multi-, pluri-

Back 24

many

Front 25

oligo-

Back 25

few, scanty, sparse

Front 26

pan-

Back 26

all

Front 27

peri-

Back 27

around

Front 28

post-

Back 28

after, following

Front 29

quadra-, quadri-

Back 29

four

Front 30

re-

Back 30

again, backward

Front 31

super-, supra-

Back 31

above, superior, more

Front 32

tachy-

Back 32

fast, abnormally, fast

Front 33

ultra-

Back 33

beyond

Front 34

uni-

Back 34

one, single