Tetrahedra
noun, plural tetrahedrons, tetrahedra
[te-truh-hee-druh] /ˌtɛ trəˈhi drə/ (Show IPA)
1.
Geometry. a solid contained by four plane faces; a triangular pyramid.
2.
any of various objects resembling a tetrahedron in the distribution of its faces or apexes.
noun (pl) -drons, -dra (-drə)
1.
a solid figure having four plane faces. A regular tetrahedron has faces that are equilateral triangles See also polyhedron
2.
any object shaped like a tetrahedron
tetrahedron
(tět’rə-hē’drən)
Plural tetrahedrons or tetrahedra
A polyhedron having four faces.
Read Also:
- Tetrahedral
adjective 1. pertaining to or having the form of a tetrahedron. 2. having four lateral planes in addition to the top and bottom.
- Tetrahedrite
[te-truh-hee-drahyt] /ˌtɛ trəˈhi draɪt/ noun 1. a steel-gray or blackish mineral with a brilliant metallic luster, essentially copper and antimony sulfide, (Cu, Fe, Zn, Ag,) 12 Sb 4 S 13 , an end member of a series of solid solutions into which arsenic enters to form tennantite: mined as an ore of copper and silver. […]
- Tetrahedron
noun, plural tetrahedrons, tetrahedra [te-truh-hee-druh] /ˌtɛ trəˈhi drə/ (Show IPA) 1. Geometry. a solid contained by four plane faces; a triangular pyramid. 2. any of various objects resembling a tetrahedron in the distribution of its faces or apexes. noun (pl) -drons, -dra (-drə) 1. a solid figure having four plane faces. A regular tetrahedron has […]
- Tetrahydrate
[te-truh-hahy-dreyt] /ˌtɛ trəˈhaɪ dreɪt/ noun, Chemistry. 1. a hydrate that contains four molecules of water, as potassium sodium tartrate, KNaC 4 H 4 O 6 ·4H 2 O.
- Tetrahydric
adjective, Chemistry. 1. (especially of alcohols and phenols) tetrahydroxy.