コウジカビ LinksSentence search for コウジカビSentence search for 麹カビSentence search for こうじかびSentence search for 麹黴Edit in JMdict Noun1. koji mold (Aspergillus oryzae)Usually written using kana aloneOther forms麹カビ 【こうじかび】、麹黴 【こうじかび】 Discussions Log in to talk about this word.