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beta receptor

or beta-receptor

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.
Also called beta-adrenergic receptor.
Compare alpha receptor.
Origin of beta receptor
1960-65 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2016.
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