Any of various perennial herbs or small shrubs of the genus Acanthus, native to the Mediterranean and having pinnately lobed basal leaves with spiny margins and showy spikes of white or purplish flowers. Also called bear's breech.
Architecture A design patterned after the leaves of one of these plants, used especially on the capitals of Corinthian columns.
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.