noun
- plural of trisoctahedron; geometric solids with 24 triangular faces, each being a crystal form in the cubic system
Usage: crystallography; geometry
Examples
- The mineral specimen displayed perfect trisoctahedra with gleaming faceted surfaces.
- Crystallographers study trisoctahedra to understand cubic crystal systems.
- The garnet crystals formed natural trisoctahedra in the metamorphic rock.
- Students examined models of trisoctahedra in their mineralogy class.
- The museum’s collection included several examples of trisoctahedra from different minerals.