icosahedron
noun
a solid figure having 20 faces.
icosahedra
-
pluralof icosahedron.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.
The crystals consist of icosahedra, as shown in Figure 18.13, with a boron atom at each corner.
From Textbooks ● Feb. 14, 2019
In the different forms of boron, there are different arrangements and connections between the icosahedra.
From Textbooks ● Feb. 14, 2019
In the most common form of boron, the icosahedra pack together in a manner similar to the cubic closest packing of spheres.
From Textbooks ● Feb. 14, 2019
The smallest particles of fire are tetrahedra, of air octahedra, of water icosahedra.
From A Critical History of Greek Philosophy by W. T. (Walter Terence) Stace
