1) 膨張率ぼうちょうりつ Parts 膨張 率 #84,515 Link copied! ぼうちょうりつ [3] Meaning Shirabe Noun rate of expansion Kanji 膨 ボウ swell, get fat, thick 張 チョウ counter for bows & stringed instruments, stretch, spread 率 ソツ ratio, rate, proportion Forms 膨張率#84,515膨張率ぼうちょうりつぼうちょうりつぼうちょうりつ