mazaedium
/məˈzeɪdɪəm/ /məˈziːdɪəm/(also mazedium) Mycology
noun
In certain ascomycete fungi (chiefly of the order Caliciales or family Onygenaceae): a powdery mass of free spores.
Origin
Late 19th century. From ancient Greek μᾶζα mass + classical Latin aedēs house + -ium.