Common Prefixes In Medical Terminology Flashcards
Prefix
Use at the beginning of a word to indicate location, frequency or number.
a-
means without, or away from
ex: aphasia (without speech)
an-
means without
ex: anoxia (without oxygen)
ante-
means before, or in-front of
ex: antepartum (before birth)
anti-
means against
Ex: antibiotic (against life)
auto-
means self
Ex: autograft (a graft from one’s own body)
brady-
Means slow
Ex: bradycardia (slow heartbeat)
dys-
means painful or difficult
Ex: dyspnea (difficulty breathing)
endo-
means within or inner
Ex: endoscope (instrument to view within)
epi-
Means upon or over
Ex: epigastric (upon or over the stomach)
eu-
Means normal or good
Ex: eupnea (normal breathing)
Hetero-
Means different
Ex: heterograft (a graft from someone else’s body)
Homo-
Means same
Ex: homozygous (having two identical genes)
hyper-
Means over or above
Ex: hypertrophy (over development)
Hypo-
Means under or below
Ex: hypoglossal (under the tongue)
Infra
Means under, beneath, or below
Ex: infraorbital (below, or under the eye socket)
Inter-
Means among or between
Ex: intervertebral (between the vertebrae)
Intra-
Means within or inside
Ex: intravenous (inside or within a vein)
Macro-
Means large
Ex: microcephalic (having a large head)
Micro-
Means small
Ex: microcephalic (having a small head)
Neo-
Means new
Ex: neonate (newborn)
Pan-
Means all
Ex: pancarditis (inflammation of all the heart)
Para-
Means beside, beyond, or near
Ex: paranasal (near or alongside the nose)
Per-
Means through
Ex: percutaneous (through the skin)
Peri-
Means around
Ex: pericardial (around the heart)
Post-
Means after
Ex: postpartum (after birth)
Pre-
Means before or in-front of
Ex: prefrontal (in front of the frontal bone)
Pseudo-
Means false
Ex: pseudocyesis (false pregnancy)
Retero-
Means backward or behind
Ex: retrograde (movement in a backward direction)
Sub-
Means below or under
Ex: subcutaneous (under or below the skin)
Super-
Means above or excess
Ex: supernumerary (above the normal skin)
Supra-
Means above
Ex: suprapubic (above the pubic bone)
Tachy-
Means rapid or fast
Ex: tachycardia (fast heartbeat)
Trans-
Means through or across
Ex: transurethral (across the urethra)
Ultra-
Means beyond or excess
Ex: ultrasound (high-frequency sound waves)