tridental

trident

[trahyd-nt]
noun
1.
a three-pronged instrument or weapon.
2.
Roman History. a three-pronged spear used by a retiarius in gladiatorial combats.
3.
Classical Mythology. the three-pronged spear forming a characteristic attribute of the sea god Poseidon, or Neptune.
4.
a fish spear having three prongs.
5.
(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).
adjective
6.
Also, tridental [trahy-den-tl] . having three prongs or tines.

Origin:
1580–90; < Latin trident- (stem of tridēns) having three teeth. See tri-, dent2

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World English Dictionary
trident (ˈtraɪdənt)
 
n
1.  a three-pronged spear, originally from the East
2.  (in Greek and Roman mythology) the three-pronged spear that the sea god Poseidon (Neptune) is represented as carrying
3.  a three-pronged instrument, weapon, or symbol
 
adj
4.  having three prongs
 
[C16: from Latin tridēns three-pronged, from tri- + dēns tooth]

Trident (ˈtraɪdənt)
 
n
a type of US submarine-launched ballistic missile with independently targetable warheads

tridentate or tridental (traɪˈdɛnteɪt)
 
adj
anatomy, botany having three prongs, teeth, or points
 
tridental or tridental
 
adj

Collins English Dictionary - Complete & Unabridged 10th Edition
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Etymonline
Word Origin & History

trident
c.1450, from L. tridentem (nom. tridens; gen. tridentis) "three-pronged, three-toothed," from tri- "three" + dens (gen. dentis) "tooth" (see tooth). As a type of U.S. nuclear-powered submarine, recorded from 1972.
Online Etymology Dictionary, © 2010 Douglas Harper
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