'Trinal' definitions:
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Trinal \Tri"nal\, a. [L. trinus triple, trini three each, fr.
tres, tria, three. See Three, and cf. Trine, a. & n.,
Tern, a.]
Threefold. "Trinal unity." --Milton.
[1913 Webster]
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In their trinal triplicities on high. --Spenser.
[1913 Webster]
