trisoctahedron

English

Etymology

tris- +‎ octahedron

Noun

trisoctahedron (plural trisoctahedrons or trisoctahedra)

1. (crystallography) A solid of the isometric system bounded by 24 equal faces, three corresponding to each face of an octahedron.
2. (geometry) triakis octahedron

References

• “trisoctahedron”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.