/ Dictionary / Index M mother liquor: Meaning and Definition of Find definitions for: moth'er liq'uor Pronunciation: [key] the portion of a solution remaining after crystallization of its important component. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. mother language mother lode Related Content Daily Word Quiz: bungled Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language