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trigonal

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adjective tri·go·nal \trī-ˈgō-nəl\

Definition of trigonal

  1. :  of, relating to, or being the division of the hexagonal crystal system or the forms belonging to it characterized by a vertical axis of threefold symmetry

trigonally

play \-nəl-ē\ adverb


1878

First Known Use of trigonal

1878


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