glottis (n.)youdaoicibaDictYouDict[glottis 词源字典]
"mouth of the windpipe, opening at the top of the larynx," 1570s, from Greek glottis "mouthpiece of a pipe," from glotta, Attic dialect variant of glossa "tongue" (see gloss (n.2)).[glottis etymology, glottis origin, 英语词源]