Definition of Chlorine 1. 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) Noun Synonyms for word "chlorine" Semanticaly linked words with "chlorine" Hyponims for word "chlorine" Lexical Analysis for "chlorine" chlorinate disinfect with chlorine treat or combine with chlorine etymology chlorineless etymology chlorinelike etymology chloriney etymology chloriniferous etymology dechlorinate etymology nonchlorine etymology radiochlorine etymology klorin [Swedish] etymology klorin etymology کلورين etymologically related chlorate etymological origin of χλωρός is derived from antichlor is derived from antichlore is derived from antichlorine is derived from chlor- is derived from chloral is derived from chlorane is derived from chloric is derived from chloride is derived from chlorinate is derived from chlorination is derived from chlorine dioxide is derived from chlorine fluoride is derived from chlorine monofluoride is derived from chlorine oxide is derived from chlorine pentafluoride is derived from chlorine trifluoride is derived from chlorine water is derived from chlorine-35 is derived from chlorine-36 is derived from chlorine-37 is derived from chloriniferous is derived from chlorinise is derived from chlorinize is derived from chlorinous is derived from chlorite is derived from chloro- is derived from chloroid is derived from chlorous is derived from chloruret is derived from dichlorine is derived from organochlorine