What does megasporangium mean?

Megasporangia:

1. These are female spores that produce megaspore cells (megasporocytes) that produce megasporangia.
2. Sporangia are found in special structures such as sori in ferns, conical shapes of some pteridophyte plants, and predominantly gymnosperm and angiosperm flowers.
3. Megasporangia arise from the placenta, commonly known as the ovules.
4. The megasporangium is commonly known as the ovules which is a small structure that is attached to the placenta using a stalk called a funicle.
5. Eggs (ovules) in the ovary can be single or multiple.