mephitic

Pertaining to mephitis; foul; noxious; pestilential; poisonous; stifling.

Tending to destroy life; poisonous; noxious

Offensive to the smell.

carbon dioxide; — so called because of its deadly suffocating power. See Carbonic acid, under Carbonic.

foul–smelling.

poisonous.

unbearably disgusting

of noxious stench from atmospheric pollution