| mephitical | 1. Tending to destroy life; poisonous; noxious; as, mephitic exhalations; mephitic regions. 2. Offensive to the smell; as, mephitic odors. <chemistry> Mephitic air, carbon dioxide; so called because of its deadly suffocating power. See Carbonic acid, under Carbonic. Origin: L. Mephiticus, fr. Mephitis mephitis: cf. F. Mephitique. Source: Websters Dictionary (01 Mar 1998) |
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