Definition of: Dionysius

(dī′ə·nish′ē·əs, -nis′-)
A masculine personal name. Also Ital. Di·o·ni′gio (dē′ō·nē′jō), Ger. Di·o·nys (dē′ə·nēs′), Pg., Sp. Di·o·ny·si·o (dē′ō·nē′sē·ō), Gk. Di·o·ny·si·os (dē′ō·nē′sē·ôs). [<Gk., belonging to Dionysus]
—Dionysius
Name of two tyrants of Syracuse: The Elder,
430–367 B.C., and The Younger,
395?–343? B.C.
—Dionysius Exiguus,
died 545?, Christian theologian; calculated traditional date of Christ's birth. See CHRISTIAN ERA.
—Dionysius of Alexandria, Saint,
theologian of the third century.
—Dionysius of Halicarnassus,
68–7 B.C., Greek historian and rhetorician.