beta-adrenergic receptor

noun Biochemistry, Physiology.

Nearby words

  1. beta version,
  2. beta wave,
  3. beta waves,
  4. beta-adrenergic,
  5. beta-adrenergic blocking agent,
  6. beta-agonist,
  7. beta-blocker,
  8. beta-carotene,
  9. beta-endorphin,
  10. beta-fructofuranosidase

beta receptor

or be·ta-re·cep·tor

noun Biochemistry, Physiology.

a site on a cell, as of the heart, that, upon interaction with epinephrine or norepinephrine, controls heartbeat and heart contractability, vasodilation, smooth muscle inhibition, and other physiological processes.

Origin of beta receptor

First recorded in 1960–65

Also called beta-adrenergic receptor. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Medicine definitions for beta-adrenergic receptor

beta-adrenergic receptor


Any of various cell membrane receptors that can bind with epinephrine and related substances that activate or block the actions of cells containing such receptors. These cells initiate physiological responses such as increasing the rate and force of contraction of the heart as well as relaxing bronchial and vascular smooth muscle.beta-receptor

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.