有ゆう用よう微び生せい物ぶつ群ぐんMeaningsNoun1. effective microorganisms; EMKanji used有be in possession用used for微micro生life物thing群a pack (e.g. of dogs)Composed of有ゆう用ようuseful; helpfulNa-adjective微び生せい物ぶつmicrobe; germNoun群ぐんgroup; bunch; crowd; throng; swarm; band; herd; school (of fish)Noun