Medical Term. Prefixes

Front 1

a-, an-

Back 1

Without, lacking, deficient, not

Front 2

ab-

Back 2

Away from

Front 3

ad-, af-

Back 3

Toward, near

Front 4

anti-, ant-

Back 4

Against, opposing, preventing

Front 5

brady-

Back 5

Slow

Front 6

circum-

Back 6

Around

Front 7

contra-

Back 7

Against, opposed

Front 8

de-

Back 8

Down, from

Front 9

dia-

Back 9

Through, between, apart, across

Front 10

dis-

Back 10

Apart, free from

Front 11

dys-

Back 11

Difficult, bad, painful and abnormal

Front 12

ect-, ecto-, exo-

Back 12

Outside of

Front 13

em-, en-, eso-

Back 13

In, into, within

Front 14

end-, endo-, ent-, ento-

Back 14

Within, inside

Front 15

ep-, epi-

Back 15

Upon, on, over

Front 16

eu-

Back 16

Normal, good, healthy, easy

Front 17

extra-, extro-

Back 17

Outside of, beyond, outward

Front 18

hemi-

Back 18

Half, partial

Front 19

hyper-

Back 19

Excessive, above, beyond

Front 20

hyper-

Back 20

Excessive, above, beyond

Front 21

hypo-

Back 21

Under, beneath, deficient

Front 22

hyper-

Back 22

Excessive, above, beyond

Front 23

hypo-

Back 23

Under, beneath, deficient

Front 24

im-, in-

Back 24

In, into, within, not

Front 25

inter-

Back 25

Between, among

Front 26

intra-, intro-

Back 26

Within, into, inside

Front 27

mal-

Back 27

Bad, abnormal

Front 28

mal-

Back 28

Bad, abnormal

Front 29

mega-, megalo-

Back 29

Large, big

Front 30

mes-, meso-

Back 30

Middle

Front 31

para-

Back 31

Beside, beyond, after

Front 32

per-

Back 32

Through, excessive

Front 33

per-

Back 33

Through, excessive

Front 34

peri-

Back 34

Around, surrounding

Front 35

per-

Back 35

Through, excessive

Front 36

peri-

Back 36

Around, surrounding

Front 37

post-

Back 37

After, behind

Front 38

per-

Back 38

Through, excessive

Front 39

peri-

Back 39

Around, surrounding

Front 40

post-

Back 40

After, behind

Front 41

pre-, pro-

Back 41

Before, in front of

Front 42

pyo-

Back 42

Pus

Front 43

pyro-

Back 43

Fire, fever

Front 44

pyro-

Back 44

Fire, fever

Front 45

re-, retro-

Back 45

Backward, behind, again

Front 46

sub-

Back 46

Under, below, beneath, less

Front 47

super-, supra-

Back 47

Above, excess, superior

Front 48

tachy-

Back 48

Fast

Front 49

trans-

Back 49

Across, through, beyond

Front 50

Chloro-

Back 50

Green

Front 51

trans-

Back 51

Across, through, beyond

Front 52

Chloro-

Back 52

Green

Front 53

Cyan-

Back 53

Blue

Front 54

trans-

Back 54

Across, through, beyond

Front 55

Chloro-

Back 55

Green

Front 56

Cyan-

Back 56

Blue

Front 57

Erythro-

Back 57

Red

Front 58

Leuko-

Back 58

White

Front 59

Melano-

Back 59

Black

Front 60

trans-

Back 60

Across, through, beyond

Front 61

Chloro-

Back 61

Green

Front 62

Cyan-

Back 62

Blue

Front 63

Erythro-

Back 63

Red

Front 64

Leuko-

Back 64

White

Front 65

Melano-

Back 65

Black

Front 66

Polio-

Back 66

Gray

Front 67

Bi-, Di-, Dipl-

Back 67

Two, double, twice

Front 68

Tri-

Back 68

Three

Front 69

Quadri-, Tetra-

Back 69

Four