[f. TRI- + -OLOGY. (Not on Greek analogies.)]
1. = TRILOGY.
1837. For. Q. Rev., xix. 447. Three tragedies thus formed together a Triology.
1898. Westm. Gaz., 14 April, 3/1. Mr. Merediths Napoleon, the second instalment of his triology on France, appears in the current number of Cosmopolis.
1900. Dundee Advertiser, 29 Nov., 2. Mr. Fenton treats the Epistles to the Romans, Corinthians, and Hebrews as a Triology designed to show the Christian Faith in its Intellectual, Social, and Spiritual aspects.
2. A doctrine or system of three or a triad.
1894. Thinker, V. 346. The monotheistic idea of All-Father soon gave place to that of a triology.