/ Dictionary / Index O Oyama: Meaning and Definition of Find definitions for: O•ya•ma Pronunciation: (ô'yä-mä"), [key] 1842–1916, Japanese field marshal. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. oy Oyashio Current Related Content Daily Word Quiz: soporific Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language