Definition of Bessel, Friedrich Wilhelm in English:

Bessel, Friedrich Wilhelm

Syllabification: Bes·sel, Friedrich Wilhelm
Pronunciation: /ˈbesəl
( 1784–1846), German astronomer and mathematician. He determined the positions of about 75,000 stars, obtained accurate measurements of stellar distances, and, following a study of the orbit of Uranus, predicted the existence of an eighth planet.

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Word of the day deictic
Pronunciation: ˈdeɪktɪk
denoting a word whose meaning depends on context...