Rhematic \Rhe*mat"ic\, n. The doctrine of propositions or sentences. --Coleridge. Rhematic \Rhe*mat"ic\, a. [Gr. ???? of or for a verb, fr. ???, ???, a sentence. See {Rhetoric}.] (Gram.) Having a verb for its base; derived from a verb; as, rhematic adjectives. --Ftzed. Hall.