heptagonal

Definitions

Examples

• It is a little heptagonal recess, paved with white marble and roofed with a shell-like cupola of marble of a single block.

• Meshes regular or subregular, hexagonal, often intermingled with a variable number of pentagonal and heptagonal meshes.

• Meshes subregular pentagonal (intermingled with single tetragonal, hexagonal, and heptagonal meshes).

• Shell-mantle one and a third times as long as broad, its frontal perimeter heptagonal, with seven concave sides.

• The effect of a heptagonal stem on an octagonal base or plinth is certainly odd.