laburnum definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
any of a genus (Laburnum) of small, poisonous trees and shrubs of the pea family, with three-part leaves and drooping racemes of yellow flowers
Origin: Modern Latin ; from Classical Latin
laburnum definition by American Heritage Dictionary
Any of several trees or shrubs of the genus Laburnum, especially L. anagyroides, which is cultivated for its drooping clusters of yellow flowers.
Origin: New Latin Laburnum, genus name, from Latin laburnum, broad-leaved bean-trefoil, perhaps of Etruscan origin.