Breadcrumb Home > Dictionary > Index O oneiric: Meaning and Definition of Find definitions for: o•nei•ric Pronunciation: (ō-nī'rik), [key] — adj. of or pertaining to dreams. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: oneiric (Thesaurus) O'Neill oneirocritic ✖ Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language