Definition of mephitis in English:

mephitis

noun

archaic
  • 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

Mid 17th century: from late Latin.

Pronunciation

mephitis

/məˈfīdəs//məˈfaɪdəs/