Noah Webster Dictionary (1913 edition): Circumferentor

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Noah Webster Dictionary (1913 edition): Circumferentor


Subjects in this Topic:

(1):

(n.) A surveying instrument, for taking horizontal angles and bearings; a surveyor's compass. It consists of a compass whose needle plays over a circle graduated to 360, and of a horizontal brass bar at the ends of which are standards with narrow slits for sighting, supported on a tripod by a ball and socket joint.

(2):

(n.) A graduated wheel for measuring tires; a tire circle.