the shields of Starfleet ships. The USS Defiant, introduced in the third season of Deep Space Nine, was said to use ablative armor in addition to shields; this technology also appeared in the alternate time line of the early 25th century shown in the Star Trek: Voyager series finale "Endgame", where it withstood repeated assaults by Borg weaponry and tractor beams. Another type of shield, the navigational deflector (also known just as the deflector, the deflector array, the deflector dish, the main deflector, the nav deflector, or the parabolic dish), was a force beam generator, usually a dish on the front of a ship, that was primarily used to deflect objects that might collide with the ship specially when traveling using Warp drive when even minute particles could cause serious damage. See also Force field (technology) Notes References Drexler, Doug; & Sternbach, Rick; & Zimmerman, Herman (1998). Star Trek: Deep Space Nine Technical Manual. Pocket Books. . Okuda, Michael; & Sternbach, Rick (1991). Star Trek: The Next Generation Technical Manual. Pocket Books. . External links Star Trek devices fr:Jargon de Star Trek: A-E#Bouclier