Demicircle definitions

Demicircle

• (n.) An instrument for measuring angles, in surveying, etc. It resembles a protractor, but has an alidade, sights, and a compass.
Found on http://thinkexist.com/dictionary/meaning/demicircle/

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Demicircle

Dem'i·cir`cle noun [ Confer French demi- cercle .] An instrument for measuring angles, in surveying, etc. It resembles a protractor, but has an alidade, sights, and a compass.
Found on http://www.encyclo.co.uk/webster/D/32

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