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 woody, usually prickly dioecious vines of the genus Smilax, having greenish unisexual flowers, heart-shaped leaves, and usually bluish to black berries. Also called greenbrier, smilax.