pl. -·drons or -·dra
a solid figure with twelve plane faces
Origin of dodecahedronClassical Greek d?dekaedron: see dodeca- and amp; -hedron
nounpl. do·dec·a·he·drons or do·dec·a·he·dra
A polyhedron with 12 faces.
Origin of dodecahedronGreek d&omacron;dekaedron, from neuter of Greek d&omacron;dekaedros, having twelve sides : d&omacron;deka, twelve; see dodecagon + -edros, sided; see -hedron.
(plural dodecahedra or dodecahedrons)
From Ancient Greek δωδεκάεδρόν (dōdekaedron).