mephitis

[ muh-fahy-tis ]
/ məˈfaɪ tɪs /

noun

(in nontechnical use) a noxious or pestilential exhalation from the earth, as poison gas.
any noisome or poisonous stench.

Origin of mephitis

1700–10; < Latin mephītis, mefītis; compare Oscan Mefit(eí) the goddess of such exhalations
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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Medicine definitions for mephitis

mephitis

[ mə-fītĭs ]

n.

An offensive smell; a stench.
A poisonous or foul-smelling gas emitted from the earth.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.