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Definition of Pharmacognosis
1. n. That branch of pharmacology which treats of unprepared medicines or simples; -- called also pharmacography, and pharmacomathy.
Medical Definition of Pharmacognosis
1. That branch of pharmacology which treats of unprepared medicines or simples. Synonym: pharmacography, and pharmacomathy. Origin: Gr. A drug + a knowing. Source: Websters Dictionary (01 Mar 1998)