/ Dictionary / Index R responsor: Meaning and Definition of Find definitions for: re•spon•sor Pronunciation: (ri-spon'sur), [key] — n. Electronics. the portion of an interrogator-responsor that receives and interprets the signals from a transponder. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. responsiveness responsory Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language