fumaroleyoudaoicibaDictYouDict[fumarole 词源字典]
"An opening in or near a volcano, through which hot sulphurous gases emerge", Early 19th century: from obsolete Italian fumaruolo, from late Latin fumariolum 'vent, hole for smoke', a diminutive based on Latin fumus 'smoke'.[fumarole etymology, fumarole origin, 英语词源]