/ Dictionary / Index M matriliny: Meaning and Definition of Find definitions for: mat•ri•lin•y Pronunciation: (ma'tru-lin"ē, -lī"nē, mā'-), [key] — pl. -lin•ies. the tracing of descent through the mother's line of a family. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. matrilineal matrilocal Related Content Daily Word Quiz: hedonist Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language