mofette(redirected from moffette)
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mo·fettealso mof·fette (mō-fĕt′)
1. An opening in the earth from which carbon dioxide and other gases escape, usually marking the last stage of volcanic activity.
2. The gases escaping from such an opening.
[French, gaseous exhalation, from Italian moffetta, diminutive of muffa, mold, moldy smell, probably of Germanic origin.]
(Geological Science) an opening in a region of nearly extinct volcanic activity, through which carbon dioxide, nitrogen, and other gases pass
[C19: from French, from Neapolitan Italian mofeta; compare dialect German muffezen to smell fetid]