Meaning & use
Planetaria
Last updated
Buildings or rooms equipped with a domed ceiling used to project images of stars, planets, and other celestial bodies for public viewing.
See it in a sentence
The city built two new planetaria to encourage interest in astronomy among students.
Modern planetaria use digital projectors instead of the old mechanical star balls.
A note on using this word
Though 'planetariums' is now the more common plural in everyday English, 'planetaria' preserves the original Latin plural form.
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