from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Any of various gases considered noxious to humans, including carbon dioxide and nitrogen.

from the GNU version of the Collaborative International Dictionary of English

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

from The Century Dictionary and Cyclopedia

  • See air.


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