Definition of koji in English:

koji

noun

mass noun
  • A substance made by combining a cultivated mould with rice, soya, or other foodstuffs, used to make fermented foods and drinks such as soy sauce, sake, and miso.

    The main mould used is Aspergillus oryzae

Origin

Japanese.

Pronunciation

koji

/ˈkəʊdʒi/