Medical Terminology Prefixes

Front 1

Mal-

Back 1

Bad, poor

Hint 1

Malicious

Front 2

Noct/i

Back 2

Night

Hint 2

Nocturnal

Front 3

Dys-

Back 3

Bad, difficult, painful, abnormal

Hint 3

Dystempia

Front 4

Hydr/o

Back 4

Water, fluid

Hint 4

Hydrotherapy

Front 5

Macro-

Back 5

Large

Front 6

Micro-

Back 6

Small

Hint 6

Microscopic

Front 7

Melan/o

Back 7

Black, dark

Hint 7

Melanoma

Front 8

Cyan/o

Back 8

Blue

Front 9

Erythr/o

Back 9

Red

Hint 9

Erythroderma

Front 10

Leuk/o

Back 10

White

Hint 10

Leukocyte

Front 11

Olig/o

Back 11

Scanty, few

Hint 11

Oliguria

Front 12

Brady-

Back 12

Slow

Hint 12

Bradypepsia

Front 13

Tachy-

Back 13

Rapid, fast

Hint 13

Tachycardia

Front 14

Mono-

Back 14

One

Hint 14

Monocyte

Front 15

A- or An-

Back 15

No, not, without, lack of

Hint 15

Afebrile

Front 16

Per-

Back 16

Through

Front 17

Hyper-

Back 17

Excessive, above

Hint 17

Hyperthyroid

Front 18

Poly-

Back 18

Many, much, excessive, frequent

Front 19

Hemi-

Back 19

Half

Hint 19

Hemifacial

Front 20

Ante-

Back 20

Forward, in front of, before

Front 21

Poly-

Back 21

Many, much, excessive, frequent

Hint 21

Polyarthritis

Front 22

Endo-, End-

Back 22

Within

Front 23

Ec- or Ecto-

Back 23

Outside, outward

Front 24

Intra-

Back 24

Within

Front 25

Peri-

Back 25

Surrounding, around

Hint 25

Pericolic

Front 26

Neo-

Back 26

New

Front 27

Hypo-

Back 27

Deficient, below, under, decreased

Hint 27

Hypothyroid

Front 28

Inter-

Back 28

Between

Front 29

Sub-

Back 29

Under, below

Hint 29

Subaural

Front 30

Hyper-

Back 30

Excessive, above, high

Front 31

Trans-

Back 31

Through, across

Front 32

Pre-

Back 32

Before, in front of

Front 33

Par-

Back 33

Near, beside

Front 34

Hypo-

Back 34

Deficient, below, low

Front 35

Post-

Back 35

After, behind

Front 36

Epi-

Back 36

Above, upon

Front 37

Para-

Back 37

Near, beside, abnormal

Front 38

Anti-

Back 38

Against

Front 39

Peri-

Back 39

Surrounding, around

Front 40

Sub-

Back 40

Under, below

Front 41

meta-

Back 41

Change, beyond

Hint 41

Metabolism

Front 42

ana-

Back 42

Up, apart

Front 43

cata-

Back 43

Down

Hint 43

Catabolism

Front 44

en-

Back 44

in

Front 45

auto-

Back 45

Self

Front 46

af-

Back 46

Toward

Front 47

ef-

Back 47

Away from

Front 48

mid-

Back 48

Middle

Front 49

retro-

Back 49

Behind

Front 50

exo-

Back 50

Outside

Front 51

extra-

Back 51

Outside

Front 52

re-

Back 52

Back

Front 53

dia-

Back 53

Through, complete

Front 54

syn-

Back 54

Joined, together

Front 55

crypt-

Back 55

Hidden

Front 56

circum-

Back 56

Around

Front 57

nulli-

Back 57

None

Front 58

primi-

Back 58

First

Front 59

multi-

Back 59

Many

Front 60

ec-

Back 60

Out

Front 61

e-

Back 61

Out

Front 62

infra-

Back 62

Under

Front 63

supra-

Back 63

Above

Front 64

sono-, echo-

Back 64

Sound

Front 65

acro-

Back 65

Extremities

Front 66

xanth/o

Back 66

Yellow