noun
( -s )
Etymology: from gerund of surface (II)
1. : the action of one that surfaces:
a. : the action or process of digging gold on the surface of the ground
b. : the motion of a tool or part of a tool used in making or finishing a surface
c. : the action of bringing the top of a railroad rail to a true grade line
2. : material forming or used to form a surface
the surfacing for a road
wash the surfacing for gold
stucco surfacing crudely painted to simulate black marble — H.S.Morrison