| n. | 1. | (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 |
| Noun | 1. | spermatozoid - a motile male gamete of a plant such as an alga or fern or gymnosperm Synonyms: antherozoid |
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