Originally, any frozen dew forming a white deposit on exposed surfaces.
Water vapour which has undergone deposition or desublimation (“transformation directly into ice crystals without first turning into liquid water”) when the air is cold and moist to form a white deposit on exposed surfaces.
The overside or up-side of a flat object such as a table, or of a liquid.
Outward or external appearance.
The outside hull of a tangible object.
The locus of an equation (especially one with exactly two degrees of freedom) in a more-than-two-dimensional space.
To apply a surface to something.
To make (information or facts) known.
To become known or apparent; to appear or be found.
To provide something with a surface.
To bring to the surface.
To come out of hiding.
To work a mine near the surface.
To rise to the surface.