from the GNU version of the Collaborative International Dictionary of English
- n. an instrument consisting of a rod or beam, having sliding sockets that carry steel or pencil points; -- used for drawing or describing large circles.
- n. See under Beam.
from The Century Dictionary and Cyclopedia
- n. An instrument consisting of a wooden or brass beam, having sliding sockets that carry steel or pencil points, used for describing large circles and for laying off distances.
Sorry, no etymologies found.
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