/ Dictionary / Index P polar orbit: Meaning and Definition of Find definitions for: po'lar or'bit Pronunciation: [key] a spacecraft orbit that passes over, or close to, the geographic poles of the earth or some other celestial body. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. polar opposition polar outbreak Related Content Daily Word Quiz: fabricate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language