Definition of methacholine in English:

methacholine

noun mɛθəˈkəʊliːn

Pharmacology

A choline derivative with parasympathomimetic activity that can induce bronchoconstriction in asthmatics and is used in tests of airway responsiveness; O-acetyl-β-methylcholine, C₈H₁₈ClNO₂.

1940s; earliest use found in Science. From meth- (in methyl: see note s.v. meth-) + -a- connective + choline.

nounmɛθəˈkəʊliːn

Pharmacology

A choline derivative with parasympathomimetic activity that can induce bronchoconstriction in asthmatics and is used in tests of airway responsiveness; O-acetyl-β-methylcholine, C₈H₁₈ClNO₂.

1940s; earliest use found in Science. From meth- (in methyl: see note s.v. meth-) + -a- connective + choline.

单词	methacholine
释义	Definition of methacholine in English: methacholine noun mɛθəˈkəʊliːn Pharmacology A choline derivative with parasympathomimetic activity that can induce bronchoconstriction in asthmatics and is used in tests of airway responsiveness; O-acetyl-β-methylcholine, C₈H₁₈ClNO₂. Origin 1940s; earliest use found in Science. From meth- (in methyl: see note s.v. meth-) + -a- connective + choline. Definition of methacholine in US English: methacholine nounmɛθəˈkəʊliːn Pharmacology A choline derivative with parasympathomimetic activity that can induce bronchoconstriction in asthmatics and is used in tests of airway responsiveness; O-acetyl-β-methylcholine, C₈H₁₈ClNO₂. Origin 1940s; earliest use found in Science. From meth- (in methyl: see note s.v. meth-) + -a- connective + choline.
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