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butterbur

[ buht-er-bur ]
/ ˈbʌt ərˌbɜr /
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noun

any of several composite plants of the genus Petasites, having large, woolly leaves said to have been used to wrap butter.

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Origin of butterbur

First recorded in 1540–50; butter + bur1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for butterbur

butterbur
/ (ˈbʌtəˌbɜː) /

noun

a plant of the Eurasian genus Petasites with fragrant whitish or purple flowers, woolly stems, and leaves formerly used to wrap butter: family Asteraceae (composites)
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
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