納なっ豆とう菌きんMeaningsNoun1. natto bacteria (Bacillus subtilis var. natto)Kanji used納to supply豆bean菌microbePitch accentなっとうきんComposed of納なっ豆とうnatto (fermented soybeans)Noun菌きんfungus; germ; bacterium; bacillusNoun