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.
In the different forms of boron, there are different arrangements and connections between the icosahedra.
From Textbooks ● Feb. 14, 2019
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 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
