An·i·mal·cule n.
1. A small animal, as a fly, spider, etc. [Obs.]
2. Zool. An animal, invisible, or nearly so, to the naked eye. See Infusoria.
Note: ☞ Many of the so-called animalcules have been shown to be plants, having locomotive powers something like those of animals. Among these are Volvox, the Desmidiacæ, and the siliceous Diatomaceæ.
Spermatic animalcules. See Spermatozoa.
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