Of or relating to the number twelve. / Consisting of twelve things.

plural of dodecad

Alternative form of duodecade (“period of twelve years”) / Alternative form of dodecad (“group of twelve”)

A group or set of twelve.

plural of dodecade

(geometry) A nonconvex polyhedron with twenty-four faces, thirty vertices, and sixty edges.

plural of dodecadodecahedron

plural of dodecadodecahedron

(obsolete) duodenum

Having the form of a dodecadodecahedron.