'Microsporangium' definitions:

Definition of 'microsporangium'

From: WordNet
noun
A plant structure that produces microspores

Definition of 'Microsporangium'

From: GCIDE
  • Microsporangium \Mi`cro*spo*ran"gi*um\, n. [NL. See Micro-, and Sporangium.] (Bot.) A sporangium or conceptacle containing only very minute spores. Cf. Macrosporangium. [1913 Webster]