dodecahedron Meaning, Definition & Usage

  1. noun any polyhedron having twelve plane faces

WordNet

Do*dec`a*he"dron noun
Etymology
Gr. twelve + seat, bottom, base: cf. F. dodécaèdre.
Definitions
  1. (Geom. & Crystallog.) A solid having twelve faces. ✍ The regular dodecahedron is bounded by twelve equal and regular pentagons; the pyritohedron (see Pyritohedron) is related to it; the rhombic dodecahedron is bounded by twelve equal rhombic faces.

Webster 1913