triboelecˈtric adjective

triboelectricˈity noun

Electricity generated by friction

tribolˈogist noun

tribolˈogy noun

The study of interacting surfaces in relative motion and of related subjects and practices

triboluminescence /-esˈəns/ noun

Emission of light caused by friction

triboluminesˈcent adjective

tribomˈeter noun

A sled-like apparatus for measuring sliding friction