/ Dictionary / Index D Doppler radar: Meaning and Definition of Find definitions for: Dop'pler ra'dar Pronunciation: [key] — Electronics. Electronics. a radar tracking system that determines the velocity of a moving object by measuring the Doppler shift of the frequency of a radar signal reflected by the object. Cf. DOVAP. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Doppler effect dor Related Content Daily Word Quiz: entomology Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language