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Definition of: ephedrine
(e·fed′rin, ef′ə·drēn) noun Chem.
An alkaloid, C10H15ON, isolated from plants of the genus Ephedra, and also made synthetically; used as a cardiac depressant and for asthma. Also e·phed·rin (i·fed′rin, ef′ə·drin). [<NL Ephedra, a genus of plants + -INE2]
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