1. plural of decahedron; three-dimensional geometric shapes with ten faces
Usage: geometry

Examples

• The students studied various decahedrons in their geometry class.
• These decahedrons have different arrangements of triangular and quadrilateral faces.
• The museum’s mathematics exhibit featured models of decahedrons and other polyhedra.
• She built several decahedrons using geometric construction kits.
• The architect incorporated decahedrons into the building’s unique design.
• Decahedrons are less common than cubes or pyramids in everyday objects.