/ Dictionary / Index C cotton stainer: Meaning and Definition of Find definitions for: cot'ton stain"er Pronunciation: [key] any of several large red-and-black bugs of the genus Dysdercus that puncture oranges and cotton bolls and discolor cotton fibers: a serious pest in America and India. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. cottonseed oil Cotton State Related Content Daily Word Quiz: candid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language