推衍 tuīyǎn to deduce Origin Definitions Defs Strokes Stroke Words Sentences Sents 推 tuī nounverb to infer (bound form) to deduce, calculate, or investigate based on known facts衍 yǎn noun to spread out (bound form) to spread out; to develop; to multiply or proliferate, as in 繁衍 fányǎn