Definition of mephitis in English:

mephitis

noun

  • A noxious or foul-smelling gas or vapour.

    • ‘Black's student Daniel Rutherford called this gas mephitic air instead: mephitis is a noxious emission in legend, thought to emanate from the earth and cause pestilence.’

Origin

Early 18th century: from late Latin.

Pronunciation:

mephitis

/məˈfīdəs/