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wolfsbane

American  
[woolfs-beyn] / ˈwʊlfsˌbeɪn /

noun

  1. any of several plants in the aconite genus Aconitum, including A. lycoctonum, bearing stalks of hood-shaped purplish-blue flowers, the monkshood A. napellus, which yields a poisonous alkaloid used medicinally, and numerous garden varieties in various colors.

wolfsbane British  
/ ˈwʊlfsˌbeɪn /

noun

  1. any of several poisonous N temperate plants of the ranunculaceous genus Aconitum, esp A. lycoctonum, which has yellow hoodlike flowers

"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

Etymology

Origin of wolfsbane

1540–50; wolf + 's 1 + bane

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.