English
Etymology
From Ancient Greek ἅλς (háls, “salt" or "sea”) + γεν- (gen-), "to produce" (coined by Berzelius in 1842).[1]
Pronunciation
- enPR: hălʹə-jən, hāʹlə-jən
- IPA(key): /ˈhæl.ə.d͡ʒən/, /ˈheɪ.lə.d͡ʒən/
Audio (Southern England): (file)
Noun
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
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. Chemists usually include tennessine as a halogen to extend the term to all of group 17, though those specialising in the chemistry of superheavy elements may exclude it.
Derived terms
Related terms
Translations
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References
- ^ Douglas Harper (2001–2024) “halogen”, in Online Etymology Dictionary.
Further reading
Catalan
Etymology
Pronunciation
Noun
halogen m (plural halogens)
Derived terms
Further reading
- “halogen” in Diccionari de la llengua catalana, segona edició, Institut d’Estudis Catalans.
Czech
Pronunciation
Noun
halogen m inan
- halogen
- Synonym: halový prvek
Declension
This noun needs an inflection-table template.
Further reading
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)
References
Norwegian Nynorsk
Etymology
From Ancient Greek ἅλς (háls) + -gen.
Noun
halogen n (definite singular halogenet, indefinite plural halogen, definite plural halogena)
References
- “halogen” in The Nynorsk Dictionary.
Romanian
Etymology
Borrowed from French halogène.
Adjective
halogen m or n (feminine singular halogenă, masculine plural halogeni, feminine and neuter plural halogene)
Declension
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
Etymology
Borrowed from English halogen.
Pronunciation
- Lua error in Module:parameters at line 360: Parameter 1 should be a valid language or etymology language code; the value "cy-N" is not valid. See WT:LOL and WT:LOL/E. IPA(key): /haˈlɔɡɛn/
- Lua error in Module:parameters at line 360: Parameter 1 should be a valid language or etymology language code; the value "cy-S" is not valid. See WT:LOL and WT:LOL/E. 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:
- 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
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