/ Dictionary / Index C cationic detergent: Meaning and Definition of Find definitions for: cation'ic deter'gent Pronunciation: [key] any of a class of synthetic compounds, as benzalkonium chloride, whose cations are colloidal in solution: used as antiseptics, wetting agents, and emulsifiers. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. cation catkin Related Content Daily Word Quiz: careening Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language