Definitions

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

  • n. A ciliated male gamete produced in an antheridium.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A motile, ciliated male gamete produced in the antheridium of an alga, fern or gymnosperm

from the GNU version of the Collaborative International Dictionary of English

  • n. The male germ cell in animals and plants, the essential element in fertilization; a microscopic animalcule-like particle, usually provided with one or more cilia by which it is capable of active motion. In animals, the familiar type is that of a small, more or less ovoid head, with a delicate threadlike cilium, or tail. Called also spermatozoön. In plants the more usual term is antherozoid.

from The Century Dictionary and Cyclopedia

  • n. See spermatozooid.

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

  • n. a motile male gamete of a plant such as an alga or fern or gymnosperm

Etymologies

spermatozo(on) + -id.
(American Heritage® Dictionary of the English Language, Fourth Edition)

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