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beta-adrenoceptor

n.
1.receptors postulated to exist on nerve cell membranes of the sympathetic nervous system in order to explain the specificity of certain agents that affect only some sympathetic activities (such as vasodilation and increased heart beat)

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    Idiom of the Day

    split up
    to separate
    They seemed like a nice couple but they suddenly split up last month.



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    It was a bit of a ________ story really because she told us how her boyfriend had left her, she'd lost her job and she had nowhere to live.

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