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vasoactive

American  
[vas-oh-ak-tiv, vey-zoh-] / ˌvæs oʊˈæk tɪv, ˌveɪ zoʊ- /

adjective

Physiology, Pharmacology.
  1. of or relating to a substance, drug, or event that changes the diameter of a blood vessel.


vasoactive British  
/ ˌveɪzəʊˈæktɪv /

adjective

  1. affecting the diameter of blood vessels

    vasoactive peptides

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of vasoactive

First recorded in 1920–25; vaso- + active

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

On the other hand, these drugs increase the concentration of the vasoactive signaling substance bradykinin.

From Science Daily

The researchers narrowed it down to a hormone called vasoactive intestinal peptide, or VIP.

From New York Times

Aviptadil is a synthetic form of human vasoactive intestinal polypeptide, which is highly concentrated in the lungs.

From Los Angeles Times

Vascular diameter responses can propagate between adjacent pericytes, but it is not yet known whether arterioles receive a signal to dilate from pericytes, or from vasoactive messengers which reach arterioles later than they reach pericytes.

From Nature

In men, a chemical that facilitates the flow is vasoactive intestinal polypeptide, a hormone that also directs the expansion and contraction of smooth muscles in the gastrointestinal tract.

From Time Magazine Archive