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planetarium

Syllabification: (plan·e·tar·i·um)

Pronunciation: /ˌplaniˈte(ə)rēəm/

Translate planetarium | into German

Definition of planetarium

noun (plural planetariums or planetaria /-ˈte(ə)rēə/)

1a building in which images of stars, planets, and constellations are projected on the inner surface of a dome for public entertainment or education.
a device used to project images of stars, planets, and constellations.