The Collaborative International Dictionary of English v.0.48:

pct \pct\ n. [Abbreviation of percent.]
   Percent; a fractional proportion, multiplied by 100.
   [abbreviation]

   Syn: percentage, percent, per cent.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

pct
    n 1: a proportion in relation to a whole (which is usually the
         amount per hundred) [syn: percentage, percent, per
         centum, pct]

V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

PCT
       Private Communication Technology (Internet, MS, Visa)


V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

PCT
       Probe Control Table (FFST/2)