mofette definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
a vent or fissure in an area of recent volcanic activity, emitting steam, carbon dioxide, and, sometimes, other gases
Origin: French ; from Italian muffare, to be moldy ; from German muff, mold
mofette definition by American Heritage Dictionary
- An opening in the earth from which carbon dioxide and other gases escape, usually marking the last stage of volcanic activity.
- The gases escaping from such an opening.
Origin: French, gaseous exhalation, from Italian moffetta, diminutive of muffa, mold, moldy smell, probably of Germanic origin.