/ Dictionary / Index O orbicular: Meaning and Definition of Find definitions for: or•bic•u•lar Pronunciation: (ôr-bik'yu-lur), [key] — adj. like an orb; circular; ringlike; spherical; rounded. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: orbicular (Thesaurus) orb orbiculate Related Content Daily Word Quiz: nonchalant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language