Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio.
any of several species (esp. Yucca filamentosa) of the yucca plant
Used by arrangement with John Wiley & Sons, Inc.
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 several closely related, stemless or nearly stemless plants of the genus Yucca, especially Y. filamentosa and Y. smalliana of the southeast United States, having long thin leaves and clusters of fragrant, white or off-white flowers.
Origin: From the spines on its leaves.