/ Dictionary / Index O Octans: Meaning and Definition of Find definitions for: Oc•tans Pronunciation: (ok'tanz), [key] — gen. Oc•tan•tis the Octant, a southern constellation that contains the south celestial pole. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: octans (Thesaurus) octanoic acid octant Related Content Daily Word Quiz: rustic Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language