rhythmĭcus, i, m., = ῥυθμικός,
one who pays attention to rhythm , or who teaches the art of preserving rhythm in composition , Cic. de Or. 3, 49, 190; Quint. 9, 4, 68: melo favente rhythmico, Mart. Cap. 2, § 121.
rhythmicus adj. , ῥυθμικός, rhythmical.— Plur. m. as subst, teachers of rhythmical compo...
An Elementary Latin Dictionary