WordNet (r) 3.0 (2006):

NPC
    n 1: an agency that serves as the focal point for all
         Intelligence Community activities related to
         nonproliferation of weapons of mass destruction and their
         missile delivery systems [syn: Nonproliferation Center,
         NPC]

The Free On-line Dictionary of Computing (19 January 2023):

NPC

   1.  NP-complete.

   2.  Next Program Counter.

   (2000-07-12)