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spessartine
spew
Spey
Speyer
SPF
Spgs.
sphagnum
sphalerite
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spherical triangle
spher·i·cal tri·an·gle (plural spher·i·cal tri·an·gles)


noun 
Definition:
 
three-sided spherical polygon: a spherical polygon that has three sides
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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