The abrasive polishing of the surface of a non-uniform material, so that softer constituents are mechanically worn away leaving harder constituents standing out in relief.
Origin
Late 19th century; earliest use found in Journal of the Iron and Steel Institute.
Definition of relief polishing in US English:
relief polishing
noun
The abrasive polishing of the surface of a non-uniform material, so that softer constituents are mechanically worn away leaving harder constituents standing out in relief.
Origin
Late 19th century; earliest use found in Journal of the Iron and Steel Institute.