rotation twin

noun

Definition of rotation twin

: a twin crystal in which the individuals are so related that one can be made to coincide with the other by a rotation of 180 degrees or occasionally 60, 90, or 120 degrees — compare reflection twin

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Dictionary Entries Near rotation twin

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rotation twin

rotative

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Cite this Entry

“Rotation twin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/rotation%20twin. Accessed 3 Aug. 2021.

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