Pyrrho, ōnis, m., = Πύρρων, a philosopher of Elis, contemporary with Aristotle, and founder of the sceptical school, Cic. Fin. 2, 11, 35; 4, 16, 43; 4, 18, 49; 4, 22, 60; 5, 8, 23; id. Ac. 2, 42, 130; id. Off. 1, 2, 6; id. Tusc. 2, 6, 15; Quint. 12, 2, 24.

— Hence, Pyrrhōnei (-ōnii), ōrum, m., the followers of Pyrrho, Pyrrhonists, Cic. de Or. 3, 17, 62.

— As adj.: Pyrrhonii philosophi, Gell. 11, 5, 1; 6.