Labarraque's solution \La`bar`raque's" so*lu"tion\n. [From Labarraque, a Parisian apothecary.] (Med.) An aqueous solution of sodium hypochlorite, extensively used as a disinfectant. [1913 Webster] Note: Sodium hypochlorite is the same compound used in the commercial trademarked bleach Clorox(TM). It has both disinfectant and bleaching activity. [PJC]