cystidium

noun

cys·​tid·​i·​um

siˈstidēəm

plural cystidia

-dēə

or cystidiums

: one of the large inflated and thick-walled cells of the hymenial layer projecting beyond the basidia and paraphyses in certain basidiomycetous fungi

Word History

Etymology

New Latin, from cyst- + -idium

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