trinal adjective & noun.
['trʌɪn(ǝ)l] L15.[medieval Latin trinalis, from Latin trinus threefold: see TRINE adjective & noun, -AL1.]A. adjective.
1. =
TRINE adjective 1.
L15.2. Grammar. Of a form or number: denoting three persons or things.
rare.
M19.b. noun.
Grammar. The trinal number; a trinal form or word.
rare.
L19. ■ tri'nality noun the quality of being trinal
M19. [TahlilGaran] English Dictionary ▲