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spherical triangle

noun, Geometry.
a triangle formed by arcs of great circles of a sphere.
Origin of spherical triangle
First recorded in 1575-85 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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British Dictionary definitions for spherical triangle

spherical triangle

a closed geometric figure formed on the surface of a sphere that is bounded by arcs of three great circles
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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