1. plural of pentahedron; three-dimensional geometric figures with five faces
Usage: geometry

Examples

• The students studied various pentahedrons in their geometry class.
• Pentahedrons are less common than cubes or pyramids in basic mathematics.
• The architect designed a building featuring pentahedrons as decorative elements.
• In crystallography, some minerals naturally form pentahedrons.
• The math teacher used models of pentahedrons to explain three-dimensional shapes.
• Pentahedrons can be constructed using different combinations of triangular and quadrilateral faces.