countersurface

English

Etymology

From counter- +‎ surface.

Noun

countersurface (plural countersurfaces)

1. (physics) A surface over which another moves frictionally
   • 2009 March 27, Meng Chen et al., “Lubrication at Physiological Pressures by Polyzwitterionic Brushes”, in Science‎, volume 323, number 5922, →DOI, pages 1698–1701:

     It is likely that this value of µ is dominated by a small number of high-friction asperity contacts between the sliding surfaces, which are far rougher than the mica substrate in our experiments, or by the bridging of the pMPC chains between the acetabular surface and the metal countersurface to which they may adsorb.