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-hedron

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  1. a combining form meaning “face,” used in the names of geometrical solid figures having the form or number of faces specified by the initial element: tetrahedron.
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Origin of -hedron

< Greek -edron, neuter of -edros having bases, -sided, equivalent to (h)édr(a) seat, face of a geometrical form (see cathedra) + -os adj. suffix
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for -hedron

-hedron

n combining form
  1. indicating a geometric solid having a specified number of faces or surfacestetrahedron
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Derived Forms-hedral, adj combining form

Word Origin

from Greek -edron -sided, from hedra seat, base
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