/ Dictionary / Index O oil sand: Meaning and Definition of Find definitions for: oil' sand" Pronunciation: [key] — Geol. Geol. a sand or sandstone containing oil or tarry residue in the pore spaces. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Oil Rivers oilseed Related Content Daily Word Quiz: hale Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language