tungsten
/ˈtʌŋstən/noun
mass noun
- the chemical element of atomic number 74, a hard steel-grey metal of the transition series. It has a very high melting point (3,410℃) and is used to make electric light filaments. (Symbol: W)（化学元素）钨（符号：W）。
词源
18th cent.: from Swedish, from tung 'heavy' + sten 'stone'.