かくりつへんどう 確率変動 LinksSentence search for 確率変動Sentence search for かくりつへんどうKanji details for 確, 率, 変 and 動Edit in JMdict Noun1. system by which hitting a certain jackpot increases the probability of hitting the next jackpot (on prepaid card pachinko machines)See also 確変 Discussions Log in to talk about this word.