1. [ noun ] (chemistry) a common nonmetallic element belonging to the halogens; best known as a heavy yellow irritating toxic gas; used to purify water and as a bleaching agent and disinfectant; occurs naturally only as a salt (as in sea water)
Synonyms: atomic_number_17 Cl
Related terms: gas chemical_element radiochlorine common_salt common_salt chlorinate chlorinate
Similar spelling:   chlorinate