backsight









backsight


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.

noun

  1. the sight of a rifle nearer the stock
  2. surveying a reading taken looking backwards to a previously occupied stationCompare foresight (def. 4)

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