tet·​ra·​he·​dral ˌte-trə-ˈhē-drəl How to pronounce tetrahedral (audio)
: being a polyhedral angle with four faces
: relating to, forming, or having the form of a tetrahedron
tetrahedrally adverb

Example Sentences

Recent Examples on the Web The compound at the heart of the SpinQ machine is dimethylphosphite, a tetrahedral molecule consisting of one phosphorous atom, one hydrogen atom, an oxygen and two CH3O groups. The Physics Arxiv Blog, Discover Magazine, 29 Jan. 2021 For this pyramid, sheer size is not the real superlative; Vegas, after all, has its own, even larger tetrahedral hotel. Boyce Upholt, Outside Online, 10 Aug. 2022 In 1951 Ruben Rausing backed an invention by the engineer Erik Wallenberg: a tetrahedral paper tube that would allow liquids to be sealed inside without any oxygen and be preserved for longer. Amie Tsang, New York Times, 6 Sep. 2019 The breakthrough came when a friend gave him a cheap tetrahedral kite. Joshua Davis, WIRED, 1 June 2003

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'tetrahedral.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Word History

First Known Use

1794, in the meaning defined at sense 1

Time Traveler
The first known use of tetrahedral was in 1794

Dictionary Entries Near tetrahedral

Cite this Entry

“Tetrahedral.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tetrahedral. Accessed 3 Feb. 2023.

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