/ Dictionary / Index C cosmological redshift: Meaning and Definition of Find definitions for: cosmolog'ical red'shift Pronunciation: [key] — Astron. Astron. the part of the redshift of celestial objects resulting from the expansion of the universe. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. cosmological principle cosmology Related Content Daily Word Quiz: reclusive Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language