adjective
- having seven angles or seven sides; shaped like a heptagon
Usage: geometry; technical
Examples
- The architect designed a heptagonal tower for the new museum.
- A heptagonal prism has seven rectangular faces.
- The garden was laid out in a heptagonal pattern.
- Students calculated the area of a heptagonal tile in geometry class.
- The heptagonal shape of the building made it distinctive in the city skyline.