polyhedron
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English
Alternative forms
Etymology
From New Latin polyedron, from Ancient Greek πολύεδρος (polúedros, “having many seats”), from πολυ- (polu-, “many”) + ἕδρα (hédra, “seat”); compare French polyèdre. By surface analysis, poly- + -hedron.
Pronunciation
Noun
polyhedron (plural polyhedra or polyhedrons)
- (geometry) A solid figure with many flat faces and straight edges.
- 1966, Norman W. Johnson, “Convex Polyhedra with Regular Faces”, in Canadian Journal of Mathematics, volume XVIII, number I, Toronto: University of Toronto Press, page 181:
- Of the convex polyhedra with regular faces, the only ones that have tetrahedral, octahedral, or icosahedral symmetry are the Platonic and Archimedean solids.
- (optics) A polyscope, or multiplying glass.
Hypernyms
Hyponyms
Hyponyms
See also Thesaurus:polyhedron
Derived terms
Translations
geometry: solid figure
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polyscope — see polyscope