Alternative form of surface-mount

(stellar astronomy) The outer edge of the corona. The boundary that separates a star's atmosphere from its exosphere (heliosphere, astrosphere), where Alfven waves transition into stellar wind (solar wind).

(geometry) All of the sides of the object, excluding its base and top (when they exist).

(electronics) Of electronic components, able to be soldered on top of printed circuit boards.

(electronics) A method in which the electrical components are mounted directly onto the surface of a printed circuit board.

A partial discharge that appears at the boundary of different insulators when there are changes in the electric field.

(nautical, military) A warship that floats on the surface of the ocean, as opposed to a submarine. Aircraft carriers are also generally excluded.

The overside or up-side of a flat object such as a table, or of a liquid. / The outside hull of a tangible object. / (figuratively) Outward or external appearance.

(transitive) To provide something with a surface. / (transitive) To apply a surface to something. / (intransitive) To rise to the surface. / (transitive) To bring to the surface.

(differential geometry) A unit vector at any given point P of a surface M which is perpendicular to the tangent plane T_P(M) of M at P. For a surface with parametrization ⃑x(u,v), it is given by