/ Dictionary / Index S solar mass: Meaning and Definition of Find definitions for: so'lar mass' Pronunciation: [key] the unit, equivalent to the mass of the sun, in which the masses of stars and other celestial objects are given: a black hole of one million solar masses. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. solarize solar month Related Content Daily Word Quiz: tactful Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language