Definition of semicircumferentor
: a surveyor's instrument used for setting out land or buildings to any angle and in preliminary survey work generally and made up of a horizontal graduated semicircle that surrounds a compass and is attached to a base with fixed vertical sights at each end and of a movable arm with vertical sights at each end that pivots on the center of the base
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Origin and Etymology of semicircumferentor
semi- + circumferentor
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