Health Vocabulary Prefixes

Front 1

Epi-

Back 1

Above, upon

Front 2

Hypo-

Back 2

Under, below,deficient

Front 3

Infra-

Back 3

Under, below

Front 4

Sub- (subnasal)

Back 4

Under (the nose)

Front 5

Inter-

Back 5

Between

Front 6

Post-

Back 6

After, behind

Front 7

Pre-

Back 7

Before, in front of

Front 8

Pro- (prognosis)

Back 8

Knowing before

Front 9

Retro-

Back 9

Backward, behind

Front 10

Bi-

Back 10

Two

Front 11

Dipl-

Back 11

Double

Front 12

Diplo- (diplobacterial)

Back 12

Bacteria linked together in pairs

Front 13

Hemi-

Back 13

One half

Front 14

Hyper-

Back 14

Excessive,above normal

Front 15

Macro-

Back 15

Large

Front 16

Micro-

Back 16

Small

Front 17

Mono-

Back 17

One

Front 18

Uni- (uninuclear)

Back 18

Pertaining to one nucleus

Front 19

Multi-

Back 19

Many, much

Front 20

Poly- (polyphobia)

Back 20

Fear of many things

Front 21

Primi-

Back 21

First

Front 22

Quadri-

Back 22

Four

Front 23

Tri-

Back 23

Three

Front 24

Ab-

Back 24

From, away from

Front 25

Ad-

Back 25

Toward

Front 26

Circum-

Back 26

Around

Front 27

Peri- (periodontal)

Back 27

Pertaining to around a tooth

Front 28

Dia-

Back 28

Through, across

Front 29

Trans- (transvaginal)

Back 29

Pertaining to across or through the vagina

Front 30

Ecto-

Back 30

Outside, outward

Front 31

Exo- (exotropia)

Back 31

Turning outward ( of one or both eyes)