backsight

[ bak-sahyt ]

noun

, Surveying.

1. a sight on a previously occupied instrument station.
2. (in leveling) the reading on a rod that is held on a point of known elevation, used in computing the elevation of the instrument.

backsight

/ ˈbækˌsaɪt /

noun

1. the sight of a rifle nearer the stock
2. surveying a reading taken looking backwards to a previously occupied station Compare foresight

Word History and Origins

Origin of backsight¹

First recorded in 1840–50; back ² + sight

Example Sentences

The tiny figures seen over the slide of the backsight seemed a little larger, but also fewer at each successive volley.

From Project Gutenberg

"Come quick," he shouted, adjusting the backsight of a rifle.

From Project Gutenberg