Of an aircraft, to alight on land or a ship deck.

The top surface of the tooth of a cutting tool, behind the cutting edge.

See <<terminal area>>

1. In plastics molding equipment, the horizontal bearing surface of a semipositive or flash mold to allow excess material to escape; or the bearing surface along the top of the screw flight in a screw extruder; or the surface of an extrusion die that is parallel to the direction of melt flow.

2. The surface between successive grooves of a diffraction grating or phonograph record.

The portion of the earth's surface that stands above sea level.

In the preparation of a pipe length for welding, the edge of the tube wall that remains perpendicular to the bore after the pipe end has been beveled.

One of the raised ridges in the bore of a rifled gun barrel.