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spermatozoid 游動精子 遊動精子 spermatozoid n 1: a motile male gamete of a plant such as an alga or fern or gymnosperm [synonym: {antherozoid}, {spermatozoid}] Spermatozoid \Sper`ma*to*zo"id\, n. [Spermatozoon Gr. e'i^dos
form.] (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 {spermatozoon}. In plants the more usual term is {antherozoid}. [1913 Webster]
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