/ Dictionary / Index C cacodylic acid: Meaning and Definition of Find definitions for: cac'odyl'ic ac'id Pronunciation: [key] a colorless, crystalline, deliquescent, poisonous solid, (CH)AsOOH, used chiefly in the manufacture of dyes and as an herbicide. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. cacodylic cacoëthes Related Content Daily Word Quiz: simian Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language