-hedron Syllabification: (-hedron)Definition of -hedron combining form (plural -hedra or -hedrons) in nouns denoting geometric solids having a specified number of plane faces:decahedron denoting geometric solids having faces of a specified shape:rhombohedronOrigin:from Greek hedra 'seat, base'-hedron in other Oxford dictionaries Definition of -hedron in the British & World English dictionary
