halogen
English edit
Etymology edit
From Ancient Greek ἅλς (háls, “salt" or "sea”) + γεν- (gen-), "to produce" (coined by Berzelius in 1842).[1]
Pronunciation edit
Noun edit
halogen (plural halogens)
- (chemistry) Any element of group 17, i.e. fluorine, chlorine, bromine, iodine, astatine and tennessine.
- A light fixture in which the filament is surrounded by an atmosphere of a halogen gas.
Usage notes edit
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 edit
Related terms edit
Translations edit
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References edit
- ^ Douglas Harper (2001–2024) “halogen”, in Online Etymology Dictionary.
Further reading edit
Catalan edit
Etymology edit
Pronunciation edit
Noun edit
halogen m (plural halogens)
Derived terms edit
Further reading edit
- “halogen” in Diccionari de la llengua catalana, segona edició, Institut d’Estudis Catalans.
Czech edit
Pronunciation edit
Noun edit
halogen m inan
- halogen
- Synonym: halový prvek
Declension edit
This noun needs an inflection-table template.
Further reading edit
Norwegian Bokmål edit
Etymology edit
From Ancient Greek ἅλς (háls, “salt" or "sea”) + -gen.
Noun edit
halogen n (definite singular halogenet, indefinite plural halogen or halogener, definite plural halogena or halogenene)
References edit
Norwegian Nynorsk edit
Etymology edit
From Ancient Greek ἅλς (háls) + -gen.
Noun edit
halogen n (definite singular halogenet, indefinite plural halogen, definite plural halogena)
References edit
- “halogen” in The Nynorsk Dictionary.
Romanian edit
Etymology edit
Borrowed from French halogène.
Adjective edit
halogen m or n (feminine singular halogenă, masculine plural halogeni, feminine and neuter plural halogene)
Declension edit
singular | plural | ||||||
---|---|---|---|---|---|---|---|
masculine | neuter | feminine | masculine | neuter | feminine | ||
nominative/ accusative |
indefinite | halogen | halogenă | halogeni | halogene | ||
definite | halogenul | halogena | halogenii | halogenele | |||
genitive/ dative |
indefinite | halogen | halogene | halogeni | halogene | ||
definite | halogenului | halogenei | halogenilor | halogenelor |
Welsh edit
Etymology edit
Borrowed from English halogen.
Pronunciation edit
- (North Wales) IPA(key): /haˈlɔɡɛn/
- (South Wales) IPA(key): /haˈloːɡɛn/, /haˈlɔɡɛn/
- Rhymes: -ɔɡɛn
Noun edit
halogen m (plural halogenau, not mutable)
- (chemistry) halogen
- 1937, R. O. Davies, Elfennau Cemeg (Elements of Chemistry), University of Wales Press:
- 1937, R. O. Davies, Elfennau Cemeg (Elements of Chemistry), University of Wales Press:
Related terms edit
- halid (“halide”)
References edit
- 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