/ Dictionary / Index C commercial fertilizer: Meaning and Definition of Find definitions for: commer'cial fer'tilizer Pronunciation: [key] fertilizer manufactured chemically, as distinguished from natural fertilizer, as manure. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. commercial credit commercialism Related Content Daily Word Quiz: lunar Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language