单词 | acetylcholine |
释义 | Word Frequency acetylcholine(ˌæsɪtaɪlˈkəʊliːn, -lɪn) noun a chemical substance secreted at the ends of many nerve fibres, esp in the autonomic nervous system, and responsible for the transmission of nervous impulses. Formula: CH3CO2(CH2)2N(CH3)3+ |
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