1. any of a number of plants (genus Arnica) of the composite family, bearing bright yellow flowers on long stalks with clusters of leaves at the base
2. a preparation made from certain of these plants (esp. A. montana or A. cordifolia), once used for treating sprains, bruises, etc.
Webster’s New World College Dictionary, Fourth Edition, compiled by the
editors of Webster’s New World Dictionaries. Copyright © 2010 by Houghton
Mifflin Harcourt. Published by Houghton Mifflin Harcourt. All rights reserved.
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