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Meaning of megaspore

meg•a•spore

Pronunciation: (meg'u-spôr", -spōr"), [key]
— n. Bot.
  1. the larger of the two kinds of spores characteristically produced by seed plants and a few fern allies, developing into a female gametophyte. Cf.
  2. the embryo sac of a flowering plant.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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