Medical Terminology (Prefixes)

Prefix: brady-

slow

Prefix: endo-

inside or within

Prefix: tachy-

fast or irregularly fast

Prefix: peri-

surrounding or around

Root: card/cardi

pertaining to the heart

Root: my

pertaining to the muscle

Root: path

disease

Suffix: -cyte

-cell

Suffix: -ia

state of being

Suffix: -itis

inflammation

Suffix: -ology

discipline of study

Suffix: -pathy

disease or disorder

Ab-

Away from

Ad-

Toward

Acro-

Top; extremities

Acu-

Sharp; severe

Ante-

Before; foward

Anti-, Anter-

Opposing; against

Bi-

Two; double

Brachio-

Arm

Chemo-

Chemical

Co-, con-, com

Together; with

Cranio

Skull

Cyto-

Related to cells

De-

Down; from

Di-

Twice; two

Dia-

Throughout

Ecto-

Outside

Encephal/o

Brain

Estro-

Female

Epi-

Upon

Extra-, Extro-

Beyond; outside of

Hemi-

Half; half of

Hemat/o-

Blood

Hyper-

Above; excessive; beyond

Hyp-, Hypo-

Below; beneath; deficient

Inter-

Between

Intra-

Within; inside

Intro-

Into; within

Macro-

Large

Meso-

Middle

Micro-, micr-

Tiny; small

Ono/Uni

One; single

Morto-

Death

My/o-

Muscle

Neur/o-

Nerve

Ocul/o-

Eye

Onco-

Tumor

Or-

Mouth

Post-

After; following; behind

Pneumono

Breathing or lungs

Pre-, pro-

In front of; before

Pulmon-

Lungs

Retro-

Behind; backward

Secto-

To cut

Semi-

Half

Stetho-

Chest

Topo-

Place; position

Trans-

Through; across

Tri-

Three

Ultra-

Excessive; beyond