酸さん性せい反はん応のうMeaningsNoun1. acid reactionKanji used酸acid性nature (of a person)反be against応respond with actionPitch accentさんせいはんのうComposed of酸さん性せいacidity; acidicNoun反はん応のうreaction; response; physical reaction (to a stimulus); observable response (of an organism); effect; changeNoun