polyhedron
noun
a solid figure having many faces.
polyhedra
-
pluralof polyhedron.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 geometry, he made key discoveries in the study of symmetries, sphere packings, lattices, polyhedra and tilings, including properties of quasi-periodic tilings as developed by Roger Penrose.
From Nature ● May 22, 2020
I should note that while most mathematicians have agreed that the term Archimedean should refer only to the 13 polyhedra Archimedes listed, the ones that satisfy the global symmetry condition, there are dissenters.
From Scientific American ● Mar. 31, 2018
His archives contain all sorts of investigations of possible packings and their properties, together with actual cardboard polyhedra, still ready to assemble:
From Scientific American ● Oct. 25, 2017
He dipped into chemistry, thinking about it in terms of graphs, like those derived from polyhedra:
From Scientific American ● Oct. 25, 2017
The Greek plural, polyhedra, is used in early English works, but "polyhedrons" is the form now more commonly seen in America.
From The Teaching of Geometry by David Eugene Smith
