/ Dictionary / Index S secondary recovery: Meaning and Definition of Find definitions for: sec'ondary recov'ery Pronunciation: [key] extraction of oil or natural gas under artificially induced pressure after the natural flow has ceased. Cf. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. secondary rainbow secondary road Related Content Daily Word Quiz: acerbity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language