alpha-receptor

noun
al·​pha-re·​cep·​tor | \ ˈal-fə-ri-ˌsep-tər How to pronounce alpha-receptor (audio) \

Definition of alpha-receptor

: any of a group of receptors that are present on cell surfaces of some effector organs and tissues innervated by the sympathetic nervous system and that mediate certain physiological responses (such as vasoconstriction, relaxation of intestinal muscle, and contraction of most smooth muscle) when bound by specific adrenergic agents — compare beta-receptor

First Known Use of alpha-receptor

1948, in the meaning defined above

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The first known use of alpha-receptor was in 1948

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Cite this Entry

“Alpha-receptor.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/alpha-receptor. Accessed 4 Aug. 2020.

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More Definitions for alpha-receptor

alpha-receptor

noun
al·​pha-re·​cep·​tor | \ ˈal-fə-ri-ˌsep-tər How to pronounce alpha-receptor (audio) \

Medical Definition of alpha-receptor

: any of a group of receptors that are present on cell surfaces of some effector organs and tissues innervated by the sympathetic nervous system and that mediate certain physiological responses (as vasoconstriction, relaxation of intestinal muscle, and contraction of most smooth muscle) when bound by specific adrenergic agents — compare beta-receptor

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