Animalcule

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Animalcule

Animalcule (pronunciation: /ˈanɪməlˌkjuːl/) is a term that was historically used to refer to small animals or microorganisms, particularly those that can only be seen using a microscope. The term is derived from the Latin animalculum, meaning a small animal.

Etymology

The term animalcule is a diminutive form of the Latin word animal, meaning animal, and the suffix -cule, meaning small. It was first used in the late 17th century to describe microscopic organisms observed by early microscopists such as Antonie van Leeuwenhoek.

Related Terms

  • Microorganism: A microscopic organism, especially a bacterium, virus, or fungus.
  • Protozoa: A phylum or grouping of phyla which comprises the single-celled microscopic animals, which include amoebas, flagellates, ciliates, sporozoans, and many other forms. They are now usually treated as a number of phyla belonging to the kingdom Protista.
  • Bacterium: A member of a large group of unicellular microorganisms which have cell walls but lack organelles and an organized nucleus, including some which can cause disease.
  • Virus: A type of microorganism that is smaller than a bacterium and that cannot grow or reproduce apart from a living cell. A virus invades living cells and uses their chemical machinery to keep itself alive and to replicate itself.

See Also

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