English dictionary
backsight
/'b/&/k,s/aI/t/
Definitions, examples, synonyms and antonyms from WordNet 3.0.
noun
-
The reading of the leveling staff in its unchanged position when the leveling instrument has been taken to a new position; a sight directed backwards to a station previously occupied. Cf. <u>Foresight</u>, <pos><i>n.</i></pos>, 3.
Source: webster1913