/ Dictionary / Index O oaten: Meaning and Definition of Find definitions for: oat•en Pronunciation: (ōt'n), [key] — adj. of, pertaining to, or made of oats. of or made of oatmeal. made of an oat straw. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: oaten (Thesaurus) -oate oater Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language