Eustachian tube (n.)youdaoicibaDictYouDict[Eustachian tube 词源字典]
so called for Italian physician Bartolomeo Eustachio (d.1574), who discovered the passages from the ears to the throat. His name is from Latin Eustachius (see Eustace).[Eustachian tube etymology, Eustachian tube origin, 英语词源]