Medical Information - Prefixes & Suffixes

Ab-

away from

Ad-

Toward

Acro-

Top; extremities

Acu-

Sharp; severe

Ante-

Before; forward

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

Mono/Uni

One; single

Morto-

Death

My/o-

Muscle

Neur/o-

Nerve

Ocul/o-

Eye

Onco-

Tumor

Or-

Mouth

Post-

After; following; behind

Pre-, pro-

In front of; before

Pulmon-

Lungs

Retro-

Behind; backward

Secto-

To cut

Semi-

Half

Stetho-

Chest

Topo-

Place; position

Trans-

Through or across

Tri-

Three

Ultra-

Excessive; beyond-ary Pertaining to

-ase

Enzyme

-ation

Process

-cele

Hernia

-clasis

To break

-constriction

Narrowing of

-dilation

To expand; stretch

-dynia

Pain; discomfort

-ectomy

Removal

-edema

Swelling; inflammation

-ema

Condition

-emia

Related to blood

-eurysm

Expanding; widening

-genesis

To form

-globin

Protein

-graphy

Recording of something

-ia

Condition

-icle

Small, possibly microscopic

-ism

Process or condition

-itis

Swelling; inflammation

-lysis

Breakdown; deterioration; separation

-mania

Obsession

-mortem

Death

-oma

Mass; tumor; cyst

-one

Hormone

-opsy

Display of

-ostosis

Condition of bone

-paresis

Weakness; failing

-partum

Birth

-pathy

Emotion or disease

-phasia

Speech

-phylaxis

Protection

-poiesis

Formation

-pnea

Breathing

-rrhea

Discharge

-rrhexis

Burst

-schisis

To split

-scopy

Examination

-somnia

Sleep

-spasm

Muscle contraction

-stasis

To control; stop

-stoma/-stomy

Create a new opening

-tomy

Process of cutting; making an incision

-tresia

Opening

-tropia

To turn

-tropin

To trigger

-type

Image, designation

-uria

Urine