embouchure (n.)youdaoicibaDictYouDict[embouchure 词源字典]
1760, in musical sense "placement of the mouth on a wind instrument," from French embouchure "river mouth, mouth of a wind instrument," from assimilated form of en- "in" (see en- (1)) + bouche "mouth" (see bouche).[embouchure etymology, embouchure origin, 英语词源]