A.trident, three-pronged fish-spear, the badge of Poseidon, Il.12.27, Od.4.506, 5.292, A.Pr.925, E.Fr.360.47; as a symbol of the empire of the sea, Ar.Eq.839; τρίαιναν ἐσθλὸς καὶ κυβερνήτης σοφός, i. e. a good fisherman . . , Archil.45.
III. a constellation rising with Pisces, Teucer in Boll Sphaera52.
IV. a kind of cautery, Paul.Aeg.6.48.