Definition of Leeuwenhoek, Antoni van in US English:

Leeuwenhoek, Antoni van

proper noun

  • (1632–1723), Dutch naturalist. He developed a lens for scientific purposes and was the first to observe bacteria, protozoa, and yeast. He accurately described red blood cells, capillaries, striated muscle fibers, spermatozoa, and the crystalline lens of the eye.

Pronunciation

Leeuwenhoek, Antoni van

/ˈlāvənˌho͞ok/