arnica

[ ahr-ni-kuh ]
/ ˈɑr nɪ kə /

noun

any composite plant of the genus Arnica, having opposite leaves and yellow flower heads.
a tincture of the flowers of A. montana, of Europe, and other species of Arnica, formerly used as an external application in sprains and bruises.

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earnest

Origin of arnica

1745–55; < New Latin < ?
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

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British Dictionary definitions for arnica

arnica
/ (ˈɑːnɪkə) /

noun

any N temperate or arctic plant of the genus Arnica, typically having yellow flowers: family Asteraceae (composites)
the tincture of the dried flower heads of any of these plants, esp A. montana, used in treating bruises

Word Origin for arnica

C18: from New Latin, of unknown origin
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