noun🔗ShareA weak, unstable acid, HOCl, known only in solution; it is made by the action of chlorine on water and, along with its salts, the hypochlorites, is used as a household bleach"The spray bottle contained a solution of hypochlorous acid, which I used to disinfect the kitchen counter. "chemistrycompoundsubstancescienceutilitytechnicalChat with AIVocabulary GamePractice Reading