Definitions

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

  • n. A large multinucleate spore formed by union of similar gametes, as in algae or fungi.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A zygosperm.
  • n. A spore formed by the union of several zoospores.

from the GNU version of the Collaborative International Dictionary of English

  • n. Same as zygosperm.
  • n. A spore formed by the union of several zoöspores; -- called also zygozoöspore.

from The Century Dictionary and Cyclopedia

  • n. In botany, a spore formed in the process of reproduction in some algæ and fungi by the union or conjugation of two similar gametes or protoplasmic masses: called isospore by Rostafinski. Also zygosperm, zygote. See spore, conjugation, 4 (with cut).

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

  • n. a plant spore formed by two similar sexual cells

Etymologies

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