traffic collision avoidance system: a safety system in aircraft that is designed to prevent mid-air collisions
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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
Example sentences from the Web for TCAS
Reign's pilot turned heads at this summer's TCAs because of an explicit masturbation scene.The 'Reign' Steamy Stairwell Shocker & TV’s 13 Dirtiest Sex Scenes (VIDEO)|Kevin Fallon|October 11, 2012|DAILY BEAST