The American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Any of various western North American evergreen shrubs of the genus Eriodictyon, having purple or white flowers borne in coiled cymes and a funnel-shaped corolla.
Origin: Spanish : yerba, herb + santa, holy.