/ Dictionary / Index C Casoron: Meaning and Definition of Find definitions for: Cas•o•ron Pronunciation: (kas'u-ron"), [key] — Hort. Trademark. Hort. Trademark. a brand of dichlobenil. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Caslon Caspar Related Content Daily Word Quiz: morose Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language