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quindecagon

[ kwin-dek-uh-gon, -guhn ]
/ kwɪnˈdɛk əˌgɒn, -gən /
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noun Geometry.

a polygon having 15 angles and 15 sides.

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Origin of quindecagon

1560–70; <Latin quīndec(im) fifteen + -agon (extracted from pentagon, hexagon, etc.)
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for quindecagon

quindecagon
/ (kwɪnˈdɛkəɡən) /

noun

a geometric figure having 15 sides and 15 angles

Word Origin for quindecagon

C16: from Latin quindecim fifteen + -agon, as in decagon
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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