birthwort

[ burth-wurt, -wawrt ]
/ ˈbɜrθˌwɜrt, -ˌwɔrt /
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noun

any of various plants of the genus Aristolochia, especially A. clematitis, an Old World species reputed to facilitate childbirth.Compare birthwort family.
any of various other plants believed to aid childbirth.

Origin of birthwort

First recorded in 1545–55; birth + wort2
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for birthwort

birthwort

/ (ˈbɜːθˌwɜːt) /

noun

any of several climbing plants of the genus Aristolochia, esp A. clematitis of Europe, once believed to ease childbirth: family Aristolochiaceae
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012