noun[mass noun] • trademark
- A very pure, shiny, brittle black form of asphalt, used in making inks, paints, and varnishes.More example sentences
- In the 1990s the state led the nation in beryllium and Gilsonite production.
- A general guideline is that 3% binder replacement with Gilsonite will double the viscosity of a binder.
late 19th century: named after Samuel H. Gilson, 19th-century American mineralogist, + -ite1.
More definitions of GilsoniteDefinition of Gilsonite in:
- The US English dictionary