PREFIXES
Prefixes
Meaning
Example
A
Without or absence of
Ametria
Ab
From; away from
Abduction
Ad
To; toward
Adduction
An
Without or absence of
Anaerobic
Ana
Up; again; backward
Anaphoresis
Ante
Before
Anteflexion
Anti
Against
Antibacterial
Apo
Upon
Aponeurotic
Bi
Two
Bimanual
Bin
Two
Binary
Brady
Slow
Bradycardia
Cata
Down
Catabatic
Con
Together
Conjugal
Contra
Against
Contraceptive
De
From; down from; lack of
Debride
Dia
Through; complete
Diameter
Dis
To undo; fre from
Dislocate
Dys
Abnormal
Dysplasia
Ecto
outside; outer
Ectocardia
Endo
Within
Endosalpinx
Epi
On; upon; over
Epithelial
Eso
Inward
Esotropia
Eu
Normal; good
Eupepsia
Ex
Outside; outward
Excrete
Exo
Outside; outward
Exophthalmos
Extra
Outside of; beyond
Extracarpal
Hemi
Half
Hemidiaphragam
Hyper
Above; excessive
Hypertension
Hypo
Below; incomplete; deficient
Hypoglycemic
In
In; into; not
Intubate
Infra
Under; below
Infraglottic
Inter
Between
Intercartilaginous
Intra
Within
Intravenous
Mal
Bad
Malabsorption
Meso
Middle
Mesocolon
Meta
After; beyond; change
Metastic
Micro
Small
Micronodular
Multi
Many
Multilobar
Neo
New
Neonatal
Nulli
None
Nulliparous
Pan
All; total
Pancytopenia
Para
Beside; beyond; around
Paranormal
Per
Through
Percutaneous
Peri
Surrounding (outer)
Pericardium
Poly
Many; much
Polyopia
Post
After
Postemryonic
Pre
Before; in front of
Preoperative
Pro
Before
Prodromal
Re
Back
Reflux
Retro
Back; behind
Retrograde
Semi
Half
Semirecumbent
Sub
Under; below
Subcutaneous
Super
Over; above
Superimpose
Supra
Above
Suprascleral
Sym
Together; joined
Symbiotic
Syn
Together; joined
Synergetic
Tachy
Fast; rapid
Tachycardia
Tetra
Four
Tetrameric
Trans
Through; across; beyond
Transurethral
Tri
Three
Trilocular
Ultra
Beyond; excess
Ultrasound
Uni
One
Uniseptate
