: any of several perennial herbs (genus Actaea) of the buttercup family native to northern temperate woodlands
especially : black cohosh sense 1

Word History

First Known Use

1723, in the meaning defined above

Time Traveler
The first known use of bugbane was in 1723

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Cite this Entry

“Bugbane.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/bugbane. Accessed 27 Aug. 2026.

Medical Definition

: a plant of the genus Actaea
especially : black cohosh

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