constrictor
Pronunciation: kon-strik′tor, -tōr
Definition:
- Anything that binds or squeezes a part.
- A muscle, the action of which is to narrow a canal; a sphincter.
[L. fr. constringo, to draw together]
See Also: inferior constrictor (muscle) of pharynx, middle constrictor (muscle) of pharynx, superior pharyngeal constrictor (muscle)
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Examples: glitazone, GI cocktail, etc.

