trinal [
'trainl]
a. 三倍的, 由三部分组成的
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.
In their trinal triplicities on high. --Spenser.