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