What does polyhedrons mean?
Polyhedrons are three-dimensional geometric solids whose surfaces consist of flat polygonal faces. Their straight edges meet at vertices, creating forms that range from familiar shapes, such as cubes and pyramids, to more complex structures used in architecture, chemistry, and computer graphics. The word belongs primarily to mathematics, geometry, and related technical fields, although it can appear in general discussion whenever the focus is on the distinctive structure of such solids. Both polyhedrons and the traditional mathematical plural polyhedra are standard, but polyhedra is more common in formal writing and textbooks. The singular is polyhedron, and the related adjective is polyhedral, as in polyhedral geometry. Polyhedrons are especially useful when discussing a group of related solids, their shared properties, or how their many faces produce different forms and degrees of symmetry.
plural nounPolyhedrons are three-dimensional geometric solids with flat polygonal faces, straight edges, and vertices where the edges meet.
- Three-dimensional geometric solids composed of flat polygonal faces joined along straight edges.
"The architect created a striking pavilion from interlocking polyhedrons of glass and steel."
"The students used wooden polyhedrons to explore symmetry and spatial reasoning."
"Ancient Greek mathematicians classified the regular polyhedrons known as the Platonic solids."
Polyhedra is the traditional mathematical plural and is generally preferred in formal writing; polyhedrons is also a standard plural formed with the English suffix -s.
"Regular polyhedra have been studied since antiquity as examples of perfect symmetry."
The Greek roots behind “polyhedron” mean “many seats,” a fitting description of a solid bounded by many flat faces.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does polyhedrons come from?
The English mathematical word polyhedron developed through New Latin from the Greek poluédron. Its elements are Greek polu-, meaning “many,” and hedron, meaning “seat” or “base,” alluding to the many faces that bound a solid. Polyhedra preserves a Latin-style plural, whereas polyhedrons uses the regular English plural ending; words such as polygon, polygonal, polyglot, and polyphony share the Greek combining form polu-.
Related word forms
How polyhedrons is actually used
This is specialized mathematical and geometric vocabulary with no marked everyday register or connotation. In formal mathematical writing, polyhedra is generally preferred over polyhedrons.
Easily confused with polyhedrons
A polyhedron is a single solid, while polyhedrons is the plural form; the traditional mathematical plural is polyhedra.