tribofilm

English

Etymology

tribo- +‎ film

Noun

tribofilm (plural tribofilms)

1. A thin film that forms on a tribologically stressed surface.
   • 2008, Girma Biresaw, Surfactants in Tribology, volume 1, page 191:

     It is well known that engine oil additives form tribochemically reacted films (often called tribofilms) on sliding steel surfaces.