Word副反応ふくはんのうListenYour browser has no Japanese voice, so Listen is not available.How to add a Japanese voiceCommonMeaningsNounside effect (of a vaccine)Nounside reactionKanji in this word副反応Dictionary data: JMdict and KANJIDIC2, property of the EDRDG, used under its licence (CC BY-SA 4.0).(opens in a new tab)