the world > space > relative position > condition of being external > surface > [noun] > with respect to form, texture, or extent (3)
= superficies, n. (in various senses).
That which constitutes the outermost part of an object; the surface layer.
The outermost part of a solid object considered with respect to its form, texture, or extent; an exterior of a particular form or finish. Cf. superf…