plural of datum surface

A military (naval) vessel designed for operation on the marine surface, as distinguished from a submarine or other types of vessels. Aircraft carriers are also generally excluded.

(dated) A streetcar (tram, trolley).

plural of surface car

plural of caustic surface

In a steam boiler, the aggregate surface exposed to fire or to the heated products of combustion, especially of all the plates or sheets that are exposed to water on their opposite surfaces.

Alternative form of worksurface

plural of surface plasmon

(physics) The layer of molecules at the surface of a liquid that is responsible for surface tension / (ecology) The layer of surface water that forms a boundary between sea and air

Mail which is transported by motor vehicle, by railway, or by seacraft, but not by aircraft.