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