[tri.dent] adj [L trident-, tridens] (1589): having three teeth, processes, or points
[2]trident n [L trident-, tridens, fr. trident-, tridens having three teeth, fr. tri- + dent-, dens tooth--more at tooth] (1599) 1: a 3-pronged spear serving in classical mythology as the attribute of a sea god (as Neptune)
2: a 3-pronged spear (as for fishing)