planetarium
noun/ˌplænɪˈteəriəm/
/ˌplænɪˈteriəm/
(plural planetariums)
- a building with a curved ceiling to represent the sky at night, with moving images of the planets and stars, used to educate and entertain peopleTopics Buildingsc2Word Originmid 18th cent.: modern Latin, from Latin planetarius ‘relating to the planets’.
Want to learn more?
Find out which words work together and produce more natural sounding English with the Oxford Collocations Dictionary app.
Check pronunciation:
planetarium