Prefixes

A-, an-

Not, without (ex.) anaerobic, without oxygen

Brady-

Slow (ex.) bradycardia, slow heart rate

Post-

After (ex.) postoperative after surgery

Pre-

Before (ex.) premature, born before due date

Dys-

Bad; painful; difficult (ex.) dyslexia, difficulty processing language

Mono-

One (ex.) monosaccharide, one sugar

Poly-

Many (ex.) polysaccharides, many sugars

Intra-

Within (ex.) IV (Intravenous) within the vein

Inter-

Between (ex.) Intercostal space between ribs

Epi-

Upon;above (ex.) epidermis layer of skin above dermis

Endo-

Inside;within (ex.) endocytosis within the cell

Peri-

Around (ex.) perimeter area around

Hypo-

Below; deficient (ex.) hypothermia, body temp below normal

Hyper-

Above/excessive (ex.) hyperventilate above normal breathing rate

Anti-

Against (ex.) antibacterial works against bacteria

Tachy-

Fast (ex.) tachycardia fast heart rate