TCAS

abbreviation for

traffic collision avoidance system: a safety system in aircraft that is designed to prevent mid-air collisions

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

Examples 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