[ trahyd-nt ]
/ ˈtraɪd nt /


a three-pronged instrument or weapon.
Roman History. a three-pronged spear used by a retiarius in gladiatorial combats.
Classical Mythology. the three-pronged spear forming a characteristic attribute of the sea god Poseidon, or Neptune.
a fish spear having three prongs.
(initial capital letter) Military. a 34-foot (10-meter) submarine-launched U.S. ballistic missile with eight to ten warheads and a range of 6500 miles (10,459 km).


Also tri·den·tal [trahy-den-tl] /traɪˈdɛn tl/. having three prongs or tines.

Origin of trident

1580–90; < Latin trident- (stem of tridēns) having three teeth. See tri-, dent2 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for trident

British Dictionary definitions for trident (1 of 2)

/ (ˈtraɪdənt) /


a three-pronged spear, originally from the East
(in Greek and Roman mythology) the three-pronged spear that the sea god Poseidon (Neptune) is represented as carrying
a three-pronged instrument, weapon, or symbol


having three prongs

Word Origin for trident

C16: from Latin tridēns three-pronged, from tri- + dēns tooth

British Dictionary definitions for trident (2 of 2)

/ (ˈtraɪdənt) /


a type of US submarine-launched ballistic missile with independently targetable warheads
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012