/ Dictionary / Index S sterile: Meaning and Definition of Find definitions for: ster•ile Pronunciation: (ster'il or, esp. Brit., -īl), [key] — adj. free from living germs or microorganisms; aseptic: sterile surgical instruments. incapable of producing offspring; not producing offspring. barren; not producing vegetation: sterile soil. noting a plant in which reproductive structures fail to develop. bearing no stamens or pistils. not productive of results, ideas, etc.; fruitless. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: sterile (Thesaurus) sterilant sterilization Related Content Daily Word Quiz: endear Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language