/ Dictionary / Index M molality: Meaning and Definition of Find definitions for: mo•lal•i•ty Pronunciation: (mō-lal'i-tē), [key] — pl. -ties. the number of moles of solute per kilogram of solvent. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: molality (Thesaurus) molal molar Related Content Daily Word Quiz: placid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language