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2016, in the meaning defined above
Tenness(ee) (the location of Oak Ridge National Laboratory, Vanderbilt University, and the University of Tennessee, which played roles in its production) + -ine entry 2
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Tennessee walking horse
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“Tennessine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tennessine. Accessed 30 May. 2020.
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