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circumferentor

[ser-kuhm-fuh-ren-ter]
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noun Surveying.
  1. an alidade equipped with a compass and two diametrically opposed vertical arms with slits for sighting through.
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Origin of circumferentor

1600–10; < Latin circumferent(ia) circumference + -or2
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for circumferentor

Historical Examples

  • An improvement which was no doubt introduced at a very early day is the measuring wheel or circumferentor.

    The Seven Follies of Science [2nd ed.]

    John Phin