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Medical Definition of Cetyltrimethylammonium bromide
1. Cetrimide;a mixture of dodecyl-, tetradecyl-, and hexadecyltrimethylammonium bromides; an odourless surface-active agent, readily soluble in water; a disinfectant with a strong bacteriostatic action, used for the sterilization of instruments and utensils. (05 Mar 2000)