Webster’s Revised Unabridged Dictionary · 1913
Basidium
Ba·sid′i·um (bā·sĭd′ĭ·ŭm), n. [NL., dim. of Gr. βάσις base.] (Bot.) A special oblong or pyriform cell, with slender branches, which bears the spores in that division of fungi called Basidiomycetes, of which the common mushroom is an example.