basidium Meaning, Definition & Usage

  1. noun a small club-shaped structure typically bearing four basidiospores at the ends of minute projections; unique to basidiomycetes

WordNet

Ba*sid"i*um noun
Etymology
NL., dim. of Gr. base.
Definitions
  1. (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.

Webster 1913