Prefix Flashcards
A-, an-
Without or not
Ab-
Away from
Ad-
Toward
Ante-
Before, forward
Anti-
Against
Auto-
Self
Bi-
Double, two
Brady-
Slow
Circum-
Around
Contra-
Against
De-
Down, from, away from, not
Dia-
Across, through, apart
Dis-
Separation, away from
Dys-
Bad, difficult, abnormal
Ecto-
Outer, outside
En-
In, into, within
Endo-
Inner, inside
Epi-
Over, on, upon
Eryth-
Red
Ex-
Out, out of, from, away from
Hemi-
Half
Hyper-
Excessive, too much, high
Hypo-
Under, decreased, less than normal
In-
In, into, within, not
Intro-
Into, within
Inter-
Between
Intra-
Within
Leuk-
White
Macro-
Large
Mal-
Bad, illness, disease
Mega-
Large
Micro-
Small
Mono-
Single, one
Neo-
New
Non-
Not
Para-
Abnormal
Peri-
Around
Per-
By, through
Poly-
Many, much
Post-
After, behind
Pre-
Before, in front of, prior to
Pro-
Before, in front of
Pseudo-
False
Re-
Again
Retro-
Backward
Scoli(o)-
Twisted, crooked
Semi-
Half
Sub-
Under
Super-
Above, over, excess
Supra-
Above, over
Tachy-
Fast
Trans-
Across
Uni-
One