icosahedron
noun
ico·sa·he·dron
| \ (ˌ)ī-ˌkō-sə-ˈhē-drən
, -ˌkä-\
, -ˌkä-\
plural icosahedrons
or icosahedra\ (ˌ)ī-ˌkō-sə-ˈhē-drə
, -ˌkä- \
, -ˌkä- \
Definition of icosahedron
: a polyhedron having 20 faces
Examples of icosahedron in a Sentence
Recent Examples on the Web
The Florence specimen exhibited the symmetries of an icosahedron, a soccer-ball-like atomic arrangement that can be viewed from 60 different angles without any change to the structure’s overall orientation. — Quanta Magazine, "In a Grain, a Glimpse of the Cosmos," 13 June 2014 The immersive experience took place under a giant version of their icosahedron logo, which — Odesza explained in a Reddit thread — represents their genre and style versatility. — Susie Schmank, Indianapolis Star, "Odesza sets the bar high for White River concert season, despite chilly conditions," 30 Apr. 2018 They are defined by symmetry, and the Greeks knew that there were only five possibilities meeting the criteria: the tetrahedron, cube, octahedron, dodecahedron and icosahedron. — Eugenia Cheng, WSJ, "Lessons of the Möbius Bagel," 10 Aug. 2017 The icosahedron is made from 20 identical equilateral triangles and seemed to exist nowhere except in mathematicians’ imaginations. — Eugenia Cheng, WSJ, "Lessons of the Möbius Bagel," 10 Aug. 2017These example sentences are selected automatically from various online news sources to reflect current usage of the word 'icosahedron.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
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