/ Dictionary / Index M molarity: Meaning and Definition of Find definitions for: mo•lar•i•ty Pronunciation: (mō-lar'i-tē), [key] — n. Chem. the number of moles of solute per liter of solution. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: molarity (Thesaurus) molar heat capacity molar volume Related Content Daily Word Quiz: censure Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language