Word | Noun | Adjective | Verb | Adverb |
---|---|---|---|---|
halogen | Yes | No | No | No |
atomic number 53 | Yes | No | No | No |
halogen (noun) | atomic number 53 (noun) |
---|---|
any of five related nonmetallic elements (fluorine or chlorine or bromine or iodine or astatine) that are all monovalent and readily form negative ions | a nonmetallic element belonging to the halogens; used especially in medicine and photography and in dyes; occurs naturally only in combination in small quantities (as in sea water or rocks) |