tetrahedron
noun
a solid contained by four plane faces; a triangular pyramid.
tetrahedra
-
pluralof tetrahedron.plural
The grammatical form denoting more than one person, place, thing, or idea.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
One part copper, two parts vanadium and four parts sulfur, the alloy features a 3D pyrochlore lattice consisting of corner-sharing tetrahedra.
From Science Daily ● Jan. 29, 2024
The SiO4 tetrahedra in glassy silica have a random arrangement characteristic of supercooled liquids, and the glass has some very useful properties.
From Textbooks ● Feb. 14, 2019
How are the silica tetrahedra structured differently in pyroxene and amphibole?
From Textbooks ● Jan. 1, 2015
Silica tetrahedra are bonded in three-dimensional frameworks in both the feldspars and quartz.
From Textbooks ● Jan. 1, 2015
In this case the funnels radiate from a central globe, formed of two intersecting tetrahedra, with "cigars" at each point enclosing a four-atomed globe.
From Occult Chemistry Clairvoyant Observations on the Chemical Elements by A. P. Sinnett
