trapezohedron

noun2

1. •
   Any of a class of polyhedra that have kite-shaped faces and are dual polyhedra of antiprisms.

   • The general form is called the tetragonal trapezohedron. In this case also there are both left- (Fig. 97) and right-handed (Fig. 98) forms. — 1969
2. •
   A deltoidal icositetrahedron.