Common Prefixes

Front 1

a-, an-

Back 1

Without, not

Hint 1

Amastia, anesthesia

Front 2

circum-, peri-

Back 2

Around

Hint 2

Circumduction, periodontal

Front 3

dia-, trans-

Back 3

Through, across

Hint 3

Diarrhea, transvaginal

Front 4

dipl-, diplo-

Back 4

Double

Hint 4

Diplopia, Diplobacterial

Front 5

endo-, intra-

Back 5

In, within

Hint 5

Endocrine, intramuscular

Front 6

homo-, homeo

Back 6

Same

Hint 6

Homograft , homeoplasia

Front 7

hypo-

Back 7

Under, below, deficient

Hint 7

Hypodermic

Front 8

macro-

Back 8

Large

Hint 8

Macrocyte

Front 9

micro-

Back 9

Small

Hint 9

Microscope

Front 10

mono-, uni-

Back 10

one

Hint 10

Monocyte, uninuclear

Front 11

post-

Back 11

After, behind

Hint 11

Postnatal

Front 12

pre-, pro-

Back 12

Before, in front of

Hint 12

Prenatal, prognosis

Front 13

primi-

Back 13

First

Hint 13

Primigravida

Front 14

retro-

Back 14

Backward, behind

Hint 14

Retroversion

Front 15

super-

Back 15

Upper, above

Hint 15

Superior

Front 16

ab-

Back 16

From, away from

Hint 16

Abduction: movement away from the body

Front 17

ad-

Back 17

Towards

Hint 17

Adduction: Movement toward the body

Front 18

ultra-

Back 18

Excess, Beyond

Front 19

brady-

Back 19

Slow

Front 20

dys-

Back 20

Bad; painful; difficult

Front 21

eu-

Back 21

good; normal

Front 22

tachy-

Back 22

Rapid

Front 23

atel-

Back 23

Incomplete imperfect

Front 24

cyst-

Back 24

bladder

Front 25

fibr-

Back 25

fiver, fibrous tissue

Front 26

empyema

Back 26

pus in a body cavity, especially in the pleural cavity (pyothorax)

Hint 26

empyema is usually the result of a primary infection in the lungs

Front 27

epiglottitis

Back 27

In the acute form a severe life-threatening infection of epiglottis and surrounding area that occurs most commonly in children between ages 2 and 12 with the sudden onset of fever dysphagia inspiratory stridor and severe respiratory distress