birthroot

[ burth-root, -roo t ]
/ ˈbɜrθˌrut, -ˌrʊt /
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noun

Also called birthwort, purple trillium. a trillium, Trillium erectum, the roots of which were formerly used in medicine as an astringent.
any of certain other species of trillium.

Origin of birthroot

First recorded in 1815–25; birth + root1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for birthroot

birthroot

/ (ˈbɜːθˌruːt) /

noun

any of several North American plants of the genus Trillium, esp T. erectum, whose tuber-like roots were formerly used by the Native Americans as an aid in childbirth: family Trilliaceae

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