halogen

== English == === Etymology === From Ancient Greek ἅλς (háls, “salt" or "sea”) + γεν- (gen-), "to produce" (coined by Berzelius in 1842). By surface analysis, halo- (“salt”) +‎ -gen (“forming”). === Pronunciation === enPR: hălʹə-jən, hāʹlə-jən IPA(key): /ˈhæl.ə.d͡ʒən/, /ˈheɪ.lə.d͡ʒən/ === Noun === halogen (plural halogens) (chemistry) Any element of group 17, i.e. fluorine, chlorine, bromine, iodine, astatine and tennessine. Hypernyms: nonmetal < element < substance, material Coordinate terms: chalcogen, pnictogen, metalloid, metal A light fixture in which the filament is surrounded by an atmosphere of a halogen gas. ==== Usage notes ==== When the term was coined, all known group 17 elements formed salts on reaction with a metal. This may not be true for the recently discovered superheavy element tennessine, though experiments cannot yet be carried out because of its short lifetime and the difficulty of manufacturing it. Chemists usually include tennessine as a halogen to extend the term to all of group 17, though those specializing in the chemistry of superheavy elements may exclude it. ==== Derived terms ==== ==== Related terms ==== ==== Translations ==== === References === === Further reading === halogen on Wikipedia.Wikipedia == Catalan == === Etymology === From halo- +‎ -gen. === Pronunciation === IPA(key): (Central, Balearic) [əˈlɔ.ʒən] IPA(key): (Valencia) [aˈlɔ.d͡ʒen] === Noun === halogen m (plural halogens) halogen ==== Derived terms ==== halogenat pseudohalogen === Further reading === “halogen”, in Diccionari de la llengua catalana [Dictionary of the Catalan Language] (in Catalan), second edition, Institute of Catalan Studies [Catalan: Institut d'Estudis Catalans], April 2007 == Czech == === Pronunciation === IPA(key): [ˈɦaloɡɛn] IPA(key): [ˈɦaloɡɛːn] === Noun === halogen m inan halogen Synonym: halový prvek ==== Declension ==== === Further reading === “halogen”, in Příruční slovník jazyka českého (in Czech), 1935–1957 “halogen”, in Slovník spisovného jazyka českého (in Czech), 1960–1971, 1989 “halogen”, in Internetová jazyková příručka (in Czech), 2008–2026 == Norwegian Bokmål == === Etymology === From Ancient Greek ἅλς (háls, “salt" or "sea”) +‎ -gen. === Noun === halogen n (definite singular halogenet, indefinite plural halogen or halogener, definite plural halogena or halogenene) (chemistry) halogen === References === “halogen” in The Bokmål Dictionary. “halogen” in Det Norske Akademis ordbok (NAOB). == Norwegian Nynorsk == === Etymology === From Ancient Greek ἅλς (háls) +‎ -gen. === Noun === halogen n (definite singular halogenet, indefinite plural halogen, definite plural halogena) (chemistry) halogen === References === “halogen” in The Nynorsk Dictionary. == Polish == === Etymology === Internationalism; compare English halogen, French halogène, Russian галоге́н (galogén). === Pronunciation === IPA(key): /xaˈlɔ.ɡɛn/ Rhymes: -ɔɡɛn Syllabification: ha‧lo‧gen === Noun === halogen m inan halogen lamp (chemistry) halogen Synonyms: chlorowiec, fluorowiec ==== Declension ==== ==== Derived terms ==== === Further reading === halogen in Wielki słownik języka polskiego, Instytut Języka Polskiego PAN halogen in Polish dictionaries at PWN == Romanian == === Etymology === Borrowed from French halogène. === Adjective === halogen m or n (feminine singular halogenă, masculine plural halogeni, feminine/neuter plural halogene) halogenic ==== Declension ==== == Welsh == === Etymology === Borrowed from English halogen. === Pronunciation === (North Wales) IPA(key): /haˈlɔɡɛn/ (South Wales) IPA(key): /haˈloːɡɛn/, /haˈlɔɡɛn/ Rhymes: -ɔɡɛn === Noun === halogen m (plural halogenau, not mutable) (chemistry) halogen 1937, R. O. Davies, Elfennau Cemeg (Elements of Chemistry), University of Wales Press: ==== Related terms ==== halid (“halide”) === References === R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke, et al., editors (1950–present), “halogen”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies