Mining. Underground surveying with the aid of equipment including a compass or dial (dial, n.1 5b). Cf. dial, v. 1. Now historical.

Surveying. A survey in which measurements are taken relative to a chain of straight lines connecting control points.

The process of establishing a level line or smooth gradient, typically by looking along the tops of a row of posts or T-shaped rods placed some…

Surveying. (See quot. 1887.)

The tracing and measurement of a series or network of triangles in order to survey and map out a territory or region, spec. by measuring the angles…

Surveying. The process of determining one's position from the bearings of two or more points whose position is known.

The use of a plane table in surveying; surveying by means of a plane table.

Surveying. A method of ascertaining the horizontal measure of a slope by extending the chain horizontally in a series of successive positions…

surveying by means of a tacheometer.

the use of such an instrument.

A method of surveying analogous to triangulation in which each triangle is determined by the measurement of all three sides.