/ Dictionary / Index O oil derrick: Meaning and Definition of Find definitions for: oil' der"rick Pronunciation: [key] derrick (def. 2). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Oildale oiled Related Content Daily Word Quiz: pudgy Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language