tetrahedron en · NOUN
Pronunciation
Etymology
From Ancient Greek τετράεδρον (tetráedron, “triangle-based pyramid”), from τετράεδρος (tetráedros), from τετράς (tetrás, “four”) + ἕδρα (hédra, “seat”). By surface analysis, tetra- + -hedron.
Meanings
- A polyhedron with four faces; the regular tetrahedron, the faces of which are equal equilateral triangles, is one of the Platonic solids.
Forms
| Spelling | Features | Labels | Source |
|---|---|---|---|
| tetrahedrons | Number=Plur | lexicographic | |
| tetrahedra | Number=Plur | lexicographic | |
| tetraedrum | alternative, obsolete | lexicographic |
Deriveds
Hill tetrahedron · supertetrahedron · tetrahedrally · hexatetrahedron · truncated tetrahedron · triakis tetrahedron · tetrahedrality · icositetrahedron · hextetrahedron · tetrahedral · hypertetrahedron · orthotetrahedron · tetrahedralizable · tetrahedrane · polytetrahedron · fire tetrahedron · tetrahedrite
Translations (49)
nl viervlak (polyhedron) · ja 正四面体 (regular tetrahedron) · hy քառանիստ (polyhedron) · cs čtyřstěn (polyhedron) · el τετράεδρο (polyhedron) · ko 정사면체 (regular tetrahedron) · uk чотиригра́нник (polyhedron) · fa چهاروجهی (polyhedron) · ja 三角錐 (polyhedron) · msn wanagvet (polyhedron) · is fjórflötungur (polyhedron) · no tetraeder (polyhedron) · sv tetraeder (polyhedron) · sk tetraéder (polyhedron) · nl tetraëder (polyhedron) · cmn 四面體 /四面体 (polyhedron) · fi nelitahokas (polyhedron) · pt tetraedro (polyhedron) · be чатырохсце́ннік (polyhedron) · da tetraeder (polyhedron) · uk тетра́едр (polyhedron) · be тэтра́эдр (polyhedron) · ru тетра́эдр (polyhedron) · is ferflötungur (polyhedron) · ca tetràedre (polyhedron) · hu tetraéder (polyhedron) · ro tetraedru (polyhedron) · tl patdayag (polyhedron) · sk štvorsten (polyhedron) · vi tứ diện (polyhedron) · de Tetraeder (polyhedron) · fr tétraèdre (polyhedron) · be чатырохсце́н (polyhedron) · he ארבעון (polyhedron) · ja 四面体 (polyhedron) · cs tetraedr (polyhedron) · de 4-Flächner (polyhedron) · bg тетраедър (polyhedron) · eo kvaredro (polyhedron) · hi चतुष्फलक (polyhedron) · it tetraedro (polyhedron) · es tetraedro (polyhedron) · pl czworościan (polyhedron) · ko 사면체 (polyhedron) · ru четырёхгра́нник (polyhedron) · fi tetraedri (polyhedron) · de Vierflächner (polyhedron) · id tetrahedron (polyhedron) · ca tetraedre (polyhedron)