[ahn-tawn vahn] /ˈɑn tɔn vɑn/ (Show IPA), 1632–1723, Dutch naturalist and microscopist.
Anton van (ˈɑntɔn vɑn). 1632–1723, Dutch microscopist, whose microscopes enabled him to give the first accurate description of blood corpuscles, spermatozoa, and microbes
Leeuwenhoek Leeu·wen·hoek or Leu·wen·hoek (lā’vən-huk’, lā’ü-wən-hōōk’), Anton van. 1632-1723.
Dutch naturalist and microscopy pioneer. His careful observations resulted in accurate descriptions of bacteria, spermatozoa, and red blood cells.
Dutch naturalist and pioneer of microscopic research. He was the first to describe protozoa, bacteria, and spermatozoa. He also made observations of yeasts, red blood cells, and blood capillaries, and traced the life histories of various animals, including the flea, ant, and weevil.
Our Living Language : As a young man Anton van Leeuwenhoek worked in a drapery store, where he used magnifying glasses to count thread densities. Perhaps inspired by Robert Hooke’s Micrographia (an account of Hooke’s microscopic investigations in botany, chemistry, and other branches of science, published in 1665), he began building microscopes. He examined hair, blood, insects, and other things around him, keeping detailed records and drawings of his observations. Although compound microscopes with more than one lens had been invented at the end of the fourteenth century, they were able to magnify objects only 20 to 30 times. Van Leeuwenhoek’s single-lens microscopes were basically powerful magnifying glasses, but his superior lens-grinding skills and acute eyesight enabled him to magnify objects up to 200 times. Van Leeuwenhoek made each microscope for a specific investigation, and he had his specimens permanently mounted so he could study them as long as he wanted. His discoveries include protozoans (1674), blood cells (1674), bacteria (1676), spermatozoa (1677), and the structure of nerves (1717). By the time of his death at the age of ninety, van Leeuwenhoek had constructed more than 400 microscopes.
Anton von [ahn-tohn fuh n] /ˈɑn toʊn fən/ (Show IPA), 1883–1945, Austrian composer. noun Anton von (ˈantoːn fɔn). 1883–1945, Austrian composer; pupil of Schoenberg, whose twelve-tone technique he adopted. His works include those for chamber ensemble, such as Five Pieces for Orchestra (1911–13)
- Antonello da messina
(Antonello di Giovanni degli Antonj) 1430?–79, Sicilian painter. Historical Examples Many portraits formerly ascribed to Antonello da Messina are now recognised as Alvises work. Venice and its Story Thomas Okey noun ?1430–?79, Italian painter, born in Sicily. His paintings include St Jerome in His Study and Portrait of a Man
noun Ion. 1882–1946, Romanian general and statesman; appointed prime minister (1940) by King Carol II. He was executed for war crimes
- Gaudi i cornet
Antoni [ahn-taw-nee] /ɑnˈtɔ ni/ (Show IPA), 1852–1926, Spanish architect and designer.