こうじきん 麹菌 LinksSentence search for 麹菌Sentence search for こうじきんSentence search for きくきんKanji details for 麹 and 菌Edit in JMdict Noun1. koji mold (Aspergillus oryzae)See also コウジカビOther forms麹菌 【きくきん】 Discussions Log in to talk about this word.