発はっ生せい率りつMeaningsNoun1. frequency; rate of occurrenceKanji used発let out生life率ratioComposed of発はっ生せいoccurrence; incidence; outbreak; birth (e.g. of civilization); generation (of power, heat, etc.); production; ontogeny; development; growth; breedingNoun率りつrate; ratio; proportion; percentageNounExamples1この町まちにおける犯はん罪ざいの発はっ生せい率りつは高たかい。The crime rate in this town is high.