(surveying) A measurement of a previously shot point, used to set the angle to zero when occupying a new position.
(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).
The rear sight of a firearm.
verb
(surveying) To shoot a backsight.
bsarcheng
chaseburg
pinchbugs
schonberg
schoolbag
schoolbag
noun
A satchel used to carry supplies for school; a bookbag.
