Definitions

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

  • n. See megaspore.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. One of the specially large spores of certain flowerless plants, as Selaginella, etc.

from the GNU version of the Collaborative International Dictionary of English

  • n. One of the specially large spores of certain flowerless plants, as Selaginella, etc.

from The Century Dictionary and Cyclopedia

  • n. In botany, an asexually produced spore of large size as compared with others belonging to the same species.
  • n. In zoology, one of the spore-like elements, few in number, but of relatively large size, into which the bodies of many monads become subdivided. Also megaspore.

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

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