Definition of decahedron in English:

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Pronunciation: /ˌdekəˈhēdrən/

noun (plural decahedrons or decahedra /-drə/)

A solid figure with ten plane faces.
Example sentences
  • Now fold, crease, decorate, and glue your decahedron, following the same hints given on the tetrahedron page.
  • The two models in the top row are compounds of two decahedra each. The model in the bottom row left and right is a nonconvex octahedron, consisting of 4 squares and 4 triangles.
  • Like the elongated shapes, the pentagons and hexagons are also characterized by a fivefold symmetry; we thus observe regular decahedrons and icosahedrons.



Pronunciation: /-drəl/
Example sentences
  • In fact, they have a truncated decahedral structure with a 5-fold symmetry.
  • Decahedral clusters have a surface tension closer to that of fcc and hcp ones than to that of icosahedral ones, though both icosahedral and decahedral structures have five fold symmetry axis.
  • The vertical ionization potentials of Al { sub 3 } X is larger than that of Al { sub 13 } in the decahedral structure while the opposite is the case with the icosahedral isomer.


Early 19th century: from deca- 'ten' + -hedron, on the pattern of words such as polyhedron.

Words that rhyme with decahedron

dodecahedron, octahedron, polyhedron, tetrahedron

For editors and proofreaders

Syllabification: dec·a·he·dron

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