'Basidium' definitions:
Definition of 'basidium'
(from WordNet)
noun
A small club-shaped structure typically bearing four basidiospores at the ends of minute projections; unique to basidiomycetes
Definition of 'Basidium'
From: GCIDE
- Basidium \Ba*sid"i*um\, n. [NL., dim. of Gr. ba`sis 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. [1913 Webster]