BaBility> Relating to, or governed By, proBaBility. The Behaviour of a proBaBilistic system cannot Be predicted exactly But the proBaBility of certain Behaviours is known. Such systems may Be simulated using pseudo-random numBers. Evolutionary computation uses proBaBilistic processes to generate new (potential) solutions to a proBlem. See also deterministic, non-proBaBilistic. (1995-09-22)