arbelos
Noun. (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''r'' and (1 − ''r''), all oriented the same way and sharing a common baseline.This is an unmodified, but possibly outdated, definition from Wiktionary and used here under the Creative Commons license. Wiktionary is a great resource. If you like it too, please donate to Wikimedia.
This entry was last updated on RefTopia from its source on 3/20/2012.