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'ecaedre.] Geom.
A solid figure or body inclosed by ten plane surfaces.
[Written also, less correctly, decaedron.]
© Webster 1913.