: a solid having 12 plane faces

Examples of dodecahedron in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The design is based on an axisymmetric dodecahedron net that is folded by an external assembly linkage. Evan Ackerman, IEEE Spectrum, 20 July 2018 The dodecahedron was sitting among the ruins of a Roman pit and was likely placed there about 1,700 years ago. Laura Baisas, Popular Science, 26 Dec. 2024

Word History

Etymology

Greek dōdekaedron, from dōdeka- + -edron -hedron

First Known Use

circa 1570, in the meaning defined above

Time Traveler
The first known use of dodecahedron was circa 1570

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Cite this Entry

“Dodecahedron.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/dodecahedron. Accessed 28 Mar. 2025.

Kids Definition

dodecahedron

noun
plural dodecahedrons or dodecahedra -drə How to pronounce dodecahedron (audio)
: a polyhedron that has 12 faces

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