Definition of black cohosh
: a bugbane (Cimicifuga racemosa) of the eastern United States
First Known Use of black cohosh
Medical Definition of black cohosh
1: a large perennial herb (Cimicifuga racemosa synonym Actaea racemosa) native to moist woodlands of the eastern U.S. and Canada and having racemes of small white flowers
2 also black cohosh root : the rhizome and roots of the black cohosh used especially to treat menopausal symptoms; also : a preparation or extract of this root used as an herbal remedy <… a year-long study involving 351 women published last month in the Annals of Internal Medicine, found that 160 milligrams of black cohosh a day was no more effective than a sugar pill.—Rita Rubin, USA Today, 11 Jan. 2007> ◆Black cohosh is also called black snakeroot and bugbane.
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