su·per·fi·cies /-ˈfɪ(ˌ)ʃiz, ʃiˌiz/
1. The surface; the exterior part, superficial area, or face of a thing.
2. Civil Law (a) Everything on the surface of a piece of ground, or of a building, so closely connected by art or nature as to constitute a part of it, as houses, or other superstructures, fences, trees, vines, etc. (b) A real right consisting of a grant by a landed proprietor of a piece of ground, bearing a strong resemblance to the long building leases granted by landholders in England, in consideration of a rent, and under reservation of the ownership of the soil.
n 1: the purely external aspect of a thing; superficial
appearance; "the audience was held by the substance of
the play rather than by the superficies of the
2: outer surface of an area or a body