/ Dictionary / Index S snow-on-the-mountain: Meaning and Definition of Find definitions for: snow-on-the-moun•tain Pronunciation: (snō'on-u-moun'tn, -ôn-), [key] — n. a spurge, Euphorbia marginata, of the western U.S., having leaves with white margins and white petallike bracts. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: snow-on-the-mountain (Thesaurus) snow mold snowpack Related Content Daily Word Quiz: procrastinate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language