/ Dictionary / Index A active-matrix: Meaning and Definition of Find definitions for: ac•tive-ma•trix Pronunciation: (ak'tiv-mā'triks), [key] of or pertaining to a high-resolution liquid-crystal display (LCD) with high contrast, used esp. for laptop computers. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. active mass active reason Related Content Daily Word Quiz: fresco Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language