I. trident noun
Etymology: Latin trident-, tridens, from trident-, tridens having three teeth, from tri- + dent-, dens tooth — more at tooth
Date: 15th century
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)
II. tri·dent ˈtrī-d ə nt adjective
Etymology: Latin trident-, tridens
Date: 1589
: having three teeth, processes, or points