from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A structure that produces one or more megaspores. Also called macrosporangium.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A sporangium which produces only megaspores
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a plant structure that produces megaspores
From neo-Latin, from mega- 'major' (from Ancient Greek (megas) 'great') + sporangium (from spora + Greek (angeion) 'vessel') (Wiktionary)