phototheodolite

English

Etymology

From photo- +‎ theodolite.

Noun

phototheodolite (plural phototheodolites)

1. A theodolite with an attached camera.
2. An arrangement of two cameras, whose plates may be brought into exactly the same plane, used in surveying and map-making. From the differences between two pictures taken at the same moment, measurements in all dimensions of the region may be obtained.