arbelos
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English
[edit]Etymology
[edit]From Ancient Greek ἄρβηλος (árbēlos) or ἄρβυλος (árbulos), literally "shoemaker's knife".
Pronunciation
[edit]Noun
[edit]arbelos (plural arbeloses)
- (geometry) A plane region bounded by a semicircle of diameter 1, connected to semicircles of diameters r and (1 − r), all oriented the same way and sharing a common baseline.