quword 趣词
Word Origins Dictionary
- methylal
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[methylal 词源字典] - "Dimethoxymethane, (CH3O)2CH2, a colourless, volatile, pungent liquid, used as a solvent and formerly as an anaesthetic", Mid 19th cent.; earliest use found in Robert Thomson (1810–1864), medical officer of health. From French méthylal or German Methylal, shortened from German Formomethylal from formo- (formo-) + methyl- (in Methylen) + -al (in Acetal).[methylal etymology, methylal origin, 英语词源]