Dictionary![]() ![]() tri•dentPronunciation: (trīd'nt), [key] —n. 1. a three-pronged instrument or weapon. 2. Rom. Hist.a three-pronged spear used by a retiarius in gladiatorial combats. 3. Class. Myth.the three-pronged spear forming a characteristic attribute of the sea god Poseidon, or Neptune. 4. a fish spear having three prongs. 5. (cap.) Mil.a 34-ft (10-m) submarine-launched U.S. ballistic missile with eight to ten warheads and a range of 6500 mi. (10,459 km). —adj. Also,tri•den•talPronunciation: (trī-den'tl). [key] having three prongs or tines. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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