What does hexahedral mean?
Hexahedral is a technical adjective meaning “having six faces.” It describes any three-dimensional solid bounded by six plane faces, so a cube is the most familiar example but not the only one. The word is especially useful in geometry, mineralogy, and computational modeling, where researchers and engineers discuss hexahedral crystals, elements, and meshes. In finite-element analysis, for instance, a hexahedral mesh divides a model into six-faced cells that can follow complex boundaries more smoothly than some other element shapes. “Hexahedral” is more precise than the general “polyhedral,” because it identifies the number of faces, not merely the fact that the object is a polyhedron. The term is formal and specialized, yet it is also a clear example of how ordinary numbers become useful categories in technical English.
adjectiveHaving six faces; of or relating to a hexahedron.
- Having six faces; of or relating to a six-faced solid or to the arrangement of six faces.
"The simulation uses a hexahedral mesh to represent the object's complex geometry."
"The simulation uses a hexahedral mesh to represent the object's complex geometry."
"A cube is the most familiar hexahedral solid."
A cube is only the most famous hexahedral shape: any solid with six flat faces qualifies.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does hexahedral come from?
The adjective was formed in English from the combining form hexa-, meaning “six,” and the geometric suffix -hedral, meaning “having faces or sides.” These elements derive from Greek: hexa- comes from hexa, “six,” while -hedral is related to hedra, “face” or “side.” The closely related noun hexahedron denotes a solid bounded by six plane faces.
Related word forms
How hexahedral is actually used
A technical and largely formal term used in geometry, mineralogy, crystallography, and computational modeling. It is more specific than simply saying that something is polyhedral because it identifies the number of faces.
Easily confused with hexahedral
Hexagonal describes something with six sides, usually in two dimensions, whereas hexahedral describes a three-dimensional solid with six faces.