WordReference Random House Unabridged Dictionary of American English © 2026
me•phi•tis
(mə fī′tis),USA pronunciation n.
- (in nontechnical use) a noxious or pestilential exhalation from the earth, as poison gas.
- any noisome or poisonous stench.
- Latin mephītis, mefītis; compare Oscan Mefit(eí) the goddess of such exhalations
- 1700–10
'mephitis' also found in these entries (note: many are not synonyms or translations):