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