/ Dictionary / Index S soil conditioner: Meaning and Definition of Find definitions for: soil' condi"tioner Pronunciation: [key] any of various organic or inorganic materials added to soil to improve its structure. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. soil binder soil conservation Related Content Daily Word Quiz: ablution Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language