Medical Terminology-Prefixes

Front 1

a-

Back 1

away from; without

Front 2

ab-

Back 2

away from

Front 3

ad-

Back 3

toward

Front 4

an-

Back 4

without; not

Front 5

ana-

Back 5

again; anew; apart from; excessive

Front 6

ant-

Back 6

against

Front 7

ante-

Back 7

forward; before

Front 8

anti-

Back 8

against

Front 9

apo-

Back 9

away from

Front 10

aut-

Back 10

self; own

Front 11

bi-

Back 11

two

Front 12

brachy-

Back 12

short

Front 13

brady-

Back 13

slow

Front 14

cata-

Back 14

down

Front 15

circa-

Back 15

about

Front 16

circum-

Back 16

around

Front 17

con-

Back 17

with

Front 18

contra-

Back 18

against

Front 19

de-

Back 19

reversal of; without

Front 20

di-

Back 20

two

Front 21

dia-

Back 21

complete; completely through

Front 22

dis-

Back 22

away from

Front 23

dorsi-

Back 23

back

Front 24

dys-

Back 24

painful; difficult; abnormal

Front 25

e-

Back 25

without; not

Front 26

ec-

Back 26

out; outward

Front 27

ecto-

Back 27

outermost; outside

Front 28

em-

Back 28

in

Front 29

en-

Back 29

in; within; inward

Front 30

endo-

Back 30

innermost; within

Front 31

epi-

Back 31

upon; above

Front 32

eu-

Back 32

normal; good

Front 33

ex-

Back 33

out; away from

Front 34

exo-

Back 34

outside of; outward

Front 35

extra-

Back 35

outside of

Front 36

hemi-

Back 36

one half

Front 37

hyper-

Back 37

above; more than normal

Front 38

hypo-

Back 38

below; deficient

Front 39

im-

Back 39

not

Front 40

in-

Back 40

in; within; not

Front 41

infra-

Back 41

below; beneath

Front 42

inter-

Back 42

between

Front 43

intra-

Back 43

within

Front 44

kilo-

Back 44

one thousand

Front 45

mal-

Back 45

bad; inadequate

Front 46

meso-

Back 46

middle

Front 47

meta-

Back 47

after; subsequent to; transition; change

Front 48

mid-

Back 48

middle

Front 49

non-

Back 49

not

Front 50

oxy-

Back 50

rapid; sharp; acid

Front 51

pan-

Back 51

all

Front 52

par-

Back 52

beside

Front 53

para-

Back 53

beside; apart from; two parts of a pair; abnormal

Front 54

per-

Back 54

through; throughout

Front 55

peri-

Back 55

around

Front 56

poly-

Back 56

many; much

Front 57

post-

Back 57

after; behind

Front 58

pre-

Back 58

before; in front of

Front 59

pro-

Back 59

before

Front 60

quadri-

Back 60

four

Front 61

re-

Back 61

again and again; backward; unable to

Front 62

retro-

Back 62

behind; backward

Front 63

semi-

Back 63

half; partly

Front 64

sub-

Back 64

below; underneath; less than

Front 65

super-

Back 65

above; beyond

Front 66

supra-

Back 66

above

Front 67

sym-

Back 67

together; with

Front 68

syn-

Back 68

together

Front 69

tachy-

Back 69

fast

Front 70

tetra-

Back 70

four

Front 71

trans-

Back 71

across; through

Front 72

tri-

Back 72

three

Front 73

ultra-

Back 73

beyond; higher

Front 74

un-

Back 74

not

Front 75

uni-

Back 75

one; single; not paired