概率论 gàilǜlùn probability theory Origin Definitions Defs Strokes Stroke Words Sentences Sents 概率 gàilǜ noun probability The numerical likelihood of a specific event occurring under a set of conditions; also called 几率 jīlǜ, 机率 jīlǜ, 或然率 huòránlǜ, or 机会率 jīhuìlǜ论 論 lùn noun theory theory; doctrine; view; opinion