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mid-15c., from Latin tridentem (nominative tridens; genitive tridentis) "three-pronged, three-toothed," from tri- "three" (see tri-) + dens (genitive dentis) "tooth" (see tooth). As a type of U.S. nuclear-powered submarine, recorded from 1972.
company A video card manufacturer. [More info?] (1997-07-16)