Definition of "vasoconstriction" []

• Constriction of a blood vessel, as by a nerve or drug. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "This process is called vasoconstriction, and it helps limit the amount of heat you lose to the environment, explained John Castellani of the U.S."
• "The amount and rate of absorption islimited by the amount of local vasoconstriction it produces. 1"
• "The arteries are narrowed because the muscle in the arteries contracts (vasoconstriction) and because the muscle cells divide and plug up the arteries (muscle cell proliferation)."