mycocecidium

[ mahy-koh-suh-sid-ee-uh m ]
/ ˌmaɪ koʊ səˈsɪd i əm /

noun Mycology.

a gall caused by a parasitic fungus.

Origin of mycocecidium

< New Latin, equivalent to myco- myco- + cecidium gall < Greek kēkídion ink-gall, equivalent to kēkid-, stem of kēkís oak-gall, a dye made therefrom + -ion diminutive suffix