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spherule
spherulite
sphery
sphincter
sphinges
sphingosine
sphinx
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spherical polygon
spher·i·cal pol·y·gon (plural spher·i·cal pol·y·gons)


noun 
Definition:
 
polygon on sphere: a geometric figure formed on the surface of a sphere, bounded by three or more arcs of great circles
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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