/ Dictionary / Index B box elder: Meaning and Definition of Find definitions for: box' el"der Pronunciation: [key] a North American maple, Acer negundo, having light gray-brown bark, pinnate, coarsely toothed leaves, and dry, winged fruit, cultivated as a shade tree, and yielding a light, soft wood used in making furniture, woodenware, etc. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. box cornice boxer Related Content Daily Word Quiz: pundit Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language