polyhedron
Appearance
English
[edit]Alternative forms
[edit]Etymology
[edit]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
[edit]Noun
[edit]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
[edit]Hyponyms
[edit]Hyponyms
See also Thesaurus:polyhedron
Derived terms
[edit]Translations
[edit]geometry: solid figure
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polyscope — see polyscope
See also
[edit]Categories:
- English terms borrowed from New Latin
- English terms derived from New Latin
- English terms derived from Ancient Greek
- English terms prefixed with poly-
- English terms suffixed with -hedron
- English 4-syllable words
- English terms with IPA pronunciation
- English terms with audio pronunciation
- English lemmas
- English nouns
- English countable nouns
- English nouns with irregular plurals
- en:Geometry
- English terms with quotations
- en:Optics
- en:Polyhedra