from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. The larger of two types of spores that give rise to a female gametophyte. Also called macrospore.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The larger spore of a heterosporous plant, typically producing a female gametophyte

from The Century Dictionary and Cyclopedia

  • n. Same as macrospore.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. larger of the two types of spore produced in heterosporous plants; develops in ovule into a female gametophyte


mega- +‎ spore (Wiktionary)



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