Definition of mazaedium in English:
mazaedium
(also mazedium)
noun məˈziːdɪəmməˈzeɪdɪəm
Mycology 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.