stadia

A station temporarily occupied in surveying.

An instrument for measuring distances by means of the angle subtended by an object of known dimensions.

In civil and topographical engineering, the method or the instruments by which what are called stadia measurements are made.

A level staff or levelling rod used by surveyors to measure differences in level, or to measure horizontal distances by sighting the stadia hairs.

(historically) A graduated brass triangle used to measure the distance of a target by comparison of the graduations with the heights of soldiers or horses.

Plural form of stadion.

Plural form of stadium.