Associations to the word «Backsight»
Wiktionary
BACKSIGHT, noun. The rear sight of a firearm.
BACKSIGHT, noun. (surveying) 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).
BACKSIGHT, noun. (surveying) A measurement of a previously shot point, used to set the angle to zero when occupying a new position.
BACKSIGHT, verb. (surveying) To shoot a backsight.
Wise words
A designer knows he has achieved perfection not when there
is nothing left to add, but when there is nothing left to
take away.