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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British Dictionary definitions for -hedron
indicating a geometric solid having a specified number of faces or surfaces: tetrahedron
- -hedral, adj combining form
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