megasporangium
Noun
Meaning
a plant structure that produces megaspores
Source: WordNetSynonyms
Hypernyms
Related terms
Examples
Seeds consist of an endosporic megasporangium surrounded by one or two sheathing layers ( integuments ).
The megagametophyte develops within the megaspore of extant seedless vascular plants and within the megasporangium in a cone or flower in seed plants.