Heptahedron
Heptahedron , noun
[Hepta- + Greek {not transcribed} seat, base, from {not transcribed} to sit: compare French heptaèdre.]
(Geometry) A solid figure with seven sides.
Heptahedron , noun
[Hepta- + Greek {not transcribed} seat, base, from {not transcribed} to sit: compare French heptaèdre.]