/ Dictionary / Index P photonics: Meaning and Definition of Find definitions for: pho•ton•ics Pronunciation: (fō-ton'iks), [key] — n. (used with a sing. v.) the study and technology of the use of light for the transmission of information. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. photonic photonovel Related Content Daily Word Quiz: resilient Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language