1. programmable interrupt controller. 2. A graphics language by Brian Kernighan, for textually describing pictures with troff. [Featured in "More Programming Pearls", Jon Bentley]. ["piC - A Language for Typesetting Graphics", B.W. Kernighan, Soft Prac & Exp 12(1):1-21 (Jan 1982)]. ["piC - A Graphics Language for Typesetting, Revised User Manual", Bell Labs TR 116, Dec 1984]. (1994-10-28) 3. personal intelligent communicator. (2001-04-30)