Decahedron \Dec`a*he"dron\ (d[e^]k`[.a]*h[=e]"dr[o^]n), n.; pl.
E. {Decahedrons} (d[e^]k`[.a]*h[=e]"dr[o^]nz), L.
{Decahedra}. [Pref. deca- + Gr. 'e`dra a seat, a base, fr.
'e`zesqai 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}.]
[1913 Webster]