basidium ba·sid·i·um (bə-sĭd'ē-əm)
n. pl. ba·sid·i·a (-ē-ə)
A small club-shaped structure typically bearing four spores at the tips of minute projections, unique to Basidiomycetes and used as a distinguishing characterisitic.
|basidium (bə-sĭd'ē-əm) Pronunciation Key
A small, specialized, club-shaped structure typically bearing four basidiospores at the tips of minute projections in the fungi known as basidiomycetes. The basidium is unique to basidiomycetes and distinguishes them from other kinds of fungi.