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tetartoidal

adjective
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te·​tar·​toi·​dal | \ ¦teˌtär¦tȯidᵊl, tə̇¦tä- \

Definition of tetartoidal

of a crystal
: having symmetry that produces a tetartoid : having three inverse tetrad axes and four triad axes of symmetry

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“Tetartoidal.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tetartoidal. Accessed 11 Jul. 2020.

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