wikipedia
English
Etymology
From Gr. tetra-, "four" + hedron, "seat".
Pronunciation
AHD|/tÄtrÉhÄ'drÉn/
IPA|/tÉtrÉËhiËdrÉn/
SAMPA|/tE.tr@."hi.dr@n/
Noun
en-noun|pl2=tetrahedra
#geometry a polyhedron with four faces; the regular tetrahedron, the faces of which are equal equilateral triangles, is one of the Platonic solids.
Translations
Catalan: tetrà edre m
Finnish: tetraedri
French: tetraèdre m
German: Tetraeder n
Hungarian: tetraéder
Italian: tetraedro m
mid
Portuguese: tetraedro m
Spanish: tetraedro m
Swedish: tetraeder c
Related terms
tetrahedral
Category:English nouns with irregular plurals
fr:tetrahedron
io:tetrahedron
id:tetrahedron
ru:tetrahedron
vi:tetrahedron
zh:tetrahedron
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