Definition of backsight in English:

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backsight

Pronunciation: /ˈbaksʌɪt/

Entry from British & World English dictionary

noun

1The sight of a rifle or other weapon that is nearer the eye of the person aiming.
Example sentences
  • The first M91 / 30 rifles therefore, used the curved backsights of the old dragoon rifles.
  • He ran his thumb along his rifle's backsight.
  • The Model 41 has an undercut square post foresight, but its backsight attracted interest since it is mounted on a rib extending rearwards from the barrel.
2 Surveying A sight or reading taken backwards or towards the point of starting.
Example sentences
  • Taking backsights is a way of detecting errors and blunders in reading instruments.
  • The first reading of almost any survey job should be a backsight onto a fixed point of reference, usually a benchmark of some sort.
  • If your party is recording corrected backsights be sure to read the upper scale if you are shooting a backsight.
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