quicksilver
noun
UK/ˈkwɪkˌsɪl.vəʳ/
US/ˈkwɪkˌsɪl.vɚ/
Definitions of quicksilver noun
A metallic element, also known as mercury, with the symbol Hg.
The glass tube of the thermometer was filled with quicksilver.
In the past, quicksilver was extensively used in many industrial processes.
Quicksilver is liquid at room temperature and has a silvery sheen.