十面體
Decahedron \Dec`a*he"dron\, n.; pl. E. {Decahedrons}, L. {Decahedra}. [Pref. deca- + Gr. 'e`dra a seat, a base, fr. 'e`zesthai to sit: cf. F. d['e]ca[`e]dre.] (Geom.) A solid figure or body inclosed by ten plane surfaces. [Written also, less correctly, {decaedron}.]
decahedron n : any polyhedron having ten plane faces