/ Dictionary / Index A avalanche lily: Meaning and Definition of Find definitions for: av'alanche lil"y Pronunciation: [key] either of two plants, Erythronium grandiflorum or E. montanum, of the lily family, of the mountains of northwestern North America, having nodding yellow or white flowers. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. avalanche avalanche wind Related Content Daily Word Quiz: vertigo Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language