noun
- plural of tetrahedron; three-dimensional geometric shapes with four triangular faces, six edges, and four vertices
Usage: geometry; mathematics
Examples
- The chemistry teacher used plastic tetrahedrons to demonstrate molecular structures.
- Regular tetrahedrons have four identical equilateral triangular faces.
- The architect incorporated tetrahedrons into the building’s modern design.
- Students calculated the volume of various tetrahedrons in geometry class.
- The crystal formed natural tetrahedrons as it solidified.
- Tetrahedrons are among the five Platonic solids studied in mathematics.