backsight

名词 n. 动词 v.
中文释义

英文释义

名词 n.
  1. The rear sight of a firearm.
    — Holonym: iron sights
  2. A measurement or reading taken back towards a point of known elevation, used to calculate the height of the surveying instrument (theodolite, transit, total station).
  3. A measurement of a previously shot point, used to set the angle to zero when occupying a new position.
动词 v.
  1. To shoot a backsight.

词形变化

backsights plural backsights present,singular,third-person backsighting participle,present backsighted participle,past backsighted past

词汇关系

衍生词
blow a backsight

词源

词源 1
From back + sight.
词源 2
From back + sight.
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