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alpha receptor

a site on a cell that, upon interaction with epinephrine or norepinephrine, controls vasoconstriction, intestinal relaxation, pupil dilation, and other physiological processes.
Also, alpha-receptor.
Also called alpha-adrenergic receptor.
Compare beta receptor.
Origin of alpha receptor
1960-65 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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alpha-receptor in Medicine

alpha-receptor n.
See 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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