• WordNet 3.6
    • n spermatozoid a motile male gamete of a plant such as an alga or fern or gymnosperm
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Webster's Revised Unabridged Dictionary
    • n Spermatozoid (Biol) 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.
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Century Dictionary and Cyclopedia
    • n spermatozoid See spermatozooid.
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Chambers's Twentieth Century Dictionary
    • Spermatozoid one of the male reproductive cells of animals, the physiological complements of the egg-cells or ova:—pl. Spermatozō′a
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Webster's Revised Unabridged Dictionary
Spermatozoön, + Gr. e'i^dos form
Chambers's Twentieth Century Dictionary
Fr.,—L. sperma—Gr. sperma, spermatosspeirein, to sow.


In literature:

The individual antheridia are sunk in depressions from which the spermatozoids are in some cases forcibly ejected.
"Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3" by Various
It is called an "antheridium," and within are produced, by internal division, numerous excessively small spermatozoids.
"Elements of Structural and Systematic Botany" by Douglas Houghton Campbell
The egg and the spermatozoid both consist of protoplasm containing a nucleus.
"The Sexual Question" by August Forel
It is sometimes called spermatozoid; the plural is spermatozoa.
"Homo-culture" by Martin Luther Holbrook
Spermatozoids from G of fig.
"Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 7" by Various