Meaning of vasoconstrictor

vas•o•con•stric•tor

Pronunciation: (vas"ō-kun-strik'tur, vā"zō-), [key]
— n. Physiol., Pharm.
  1. a nerve or drug that causes vasoconstriction.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
See also:
vasoconstrictive vasodepressor