[1] : The Collaborative International Dictionary of English v.0.48

decahedron \dec`ahe"dron\ de^k`.ah=e"dro^n, n.; pl.
   e. decahedrons de^k`.ah=e"dro^nz, l.
   decahedra. pref. deca- + gr. 'e`dra a seat, a base, fr.
   'e`zesqai to sit: cf. f. d'eca`edre. geom.
   a solid figure or body inclosed by ten plane surfaces.
   written also, less correctly, decaedron.
   1913 webster
see also:
decahedrons decahedra decaedron 

[2] : WordNet (r) 2.0

decahedron
     n : any polyhedron having ten plane faces

Decahedron >> D Words
Decahedron, definition of term: Decahedron
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