1-Stop Dictionary Reference

Tetrahedron

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This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

The American Heritage® Dictionary of the English Language, 4th Edition

n. A polyhedron with four faces.

Wiktionary, Creative Commons Attribution/Share-Alike License

n. a polyhedron with four faces; the regular tetrahedron, the faces of which are equal equilateral triangles, is one of the Platonic solids.

the GNU version of the Collaborative International Dictionary of English

n. A solid figure inclosed or bounded by four triangles.

The Century Dictionary and Cyclopedia

n. A solid comprehended under four plane faces; especially, the regular tetrahedron, or triangular pyramid having its base and sides equilateral triangles.

WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

n. any polyhedron having four plane faces

Word Usage

"A tetrahedron is a good model for e.g. a carbon atom in a molecular form, and the tighter the "packing," the tighter the molecular bonds."

Hypernym

Words that are more generic or abstract

polyhedron

Cross Reference

tetrahedron of möbius truncated tetrahedron polar tetrahedron orthogonal tetrahedron six-faced tetrahedron

Variant

tetrahedra

Rhyme

Words with the same terminal sound

octahedron polyhedron

Same Context

Words that are found in similar contexts

octahedron icosahedron polygon address banqueting-room