Medical Terminology Prefixes and Their Meanings
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Number and Quantity Prefixes
- Mono-, Uni- (one):
- Monodiplopia: Double vision that occurs only in one eye.
- Unilateral: Confined to one side only.
- Bi-, Di- (two, twice, double):
- Diplopia: Double vision.
- Bilateral: Affecting two sides.
- Tri- (three):
- Trigeminal nerve: The fifth cranial nerve, providing sensory innervation to the face, divided into three main branches.
- Quad-, Quadra-, Tetra- (four):
- Quadrant: Areas divided for descriptive purposes into quadrants.
- Tetradactyl: Having four fingers or toes on a hand or foot.
- Multi- (many):
- Multicellular: Composed of many cells.
- Poly- (too much, many):
- Polyuria: Excessive excretion of urine.
- Hemi-, Semi- (half or partly):
- Hemiplegia: Paralysis of one side of the body.
- Semicomatose: State of drowsiness and inaction, requiring