rare. [f. next, after uni-, trinitarian.] One who believes that there are four persons in the Godhead.
1829. Gen. P. Thompson, Exerc. (1842), I. 72. We should all have been Quaternitarians, and Quaternitarians would have been the orthodox.
1865. M. Arnold, Ess. Crit., viii. (1875), 328. They [Jansenists] are, without thinking or intending it, Quaternitarians.
