Wordnet 3.0
NOUN (1)
1. 
 an agency that helps the Director of Central Intelligence coordinate counterterrorist efforts in order to preempt and disrupt and defeat terrorist activities at the earliest possible stage; 
[syn: Counterterrorist Center, CTC]
WordNet (r) 3.0 (2006):
Counterterrorist Center
    n 1: an agency that helps the Director of Central Intelligence
         coordinate counterterrorist efforts in order to preempt and
         disrupt and defeat terrorist activities at the earliest
         possible stage [syn: Counterterrorist Center, CTC]