control point

noun

, Aerial Photogrammetry.

1. a point located on the ground by precise surveying that when identified on aerial photographs provides the control necessary for producing a photomap.

Word History and Origins

Origin of control point¹

First recorded in 1925–30

Example Sentences

It was the first time either of them had seen the blockhouse, the control point from which the rockets were fired.

From Project Gutenberg

Spraying does not control point-rot so far as present evidence goes.

From Project Gutenberg