| Engelsk navneord: atomic number 17 | 
| 1. | atomic number 17 (om masse el. substans) 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) | 
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 | Termer med samme betydning (synonymer) | chlorine, Cl | 
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 | Mindre specifikke termer | chemical element, element, gas, halogen | 
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 | Mere specifikke termer | radiochlorine | 
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 | Vedrærer disse overordnede termer | common salt, sodium chloride | 
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