Animals expire carbon and plants inspire it; plants expire oxygen and animals inspire it. ( transitive ) To give forth insensibly or gently, as a fluid or vapour; to emit in minute particles. 1627 (indicated as 1626 ) , Francis [Bacon] , “ (please specify the page, or |century=I to X) ”, in Sylua Syluarum: Or A Naturall Historie. More @Wikipedia
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