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]