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alpha receptor

or al·pha-re·cep·tor

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noun

a site on a cell that, upon interaction with epinephrine or norepinephrine, controls vasoconstriction, intestinal relaxation, pupil dilation, and other physiological processes.

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Also called alpha-adrenergic receptor.
Compare beta receptor.

Origin of alpha receptor

First recorded in 1960–65
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

Medical definitions for alpha receptor

alpha-receptor

n.

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