mephitic (mə-FĬT-ĭk)
Stephanie Whetstone2018-01-01T12:00:23-05:00Definition (Adjective) Especially of a gas or vapour: offensive to the smell, foul-smelling; noxious, poisonous, pestilential. In Context "The inhabitants themselves show in their faces the poisonous influence of the mephitic air they breathe." Richard Guard, Lost London, 2012.