Definition of tungsten noun from the Oxford Advanced Learner's Dictionary

 

tungsten

 noun
noun
BrE BrE//ˈtʌŋstən//
 
; NAmE NAmE//ˈtʌŋstən//
 
[uncountable](symbol W)
 
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a chemical element. Tungsten is a very hard silver-grey metal, used especially in making steel and in filaments for light bulbs. Word Origin late 18th cent.: from Swedish, from tung ‘heavy’ + sten ‘stone’.
See the Oxford Advanced American Dictionary entry: tungsten