/ Dictionary / Index M matrix sentence: Meaning and Definition of Find definitions for: ma'trix sen"tence Pronunciation: [key] a sentence in which another sentence is embedded: Inis a matrix sentence. The man who called is waiting, The man is waiting Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. matrix mechanics matrocliny Related Content Daily Word Quiz: soporific Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language