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planetarium

planetarium

30 5.3
A place where images of stars and planets are shown on a dome
  • noun
  • /ˌplænəˈtɛriəm/
: planetario
  • Ladies and gentlemen Welcome to the London Planetarium.
  • Adler Planetarium
  • Hayden Planetarium
  • portable planetariums

You get to talk like this in the Dome of a planetarium.

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Examples

  • At the Adler Planetarium, you will see a marvelous "night show" of stars.

    Academic text (1997)
  • Pamela Eastlick is the planetarium coordinator at the University of Guam in Mangilao.

    Academic text (1995)
  • Mom and Dad are at the planetarium.

  • Ladies and gentlemen, welcome to the planetarium.

  • So I'm in a dark planetarium, completely silent aside from some background music and watching Journey to the Sun.

  • I haven't been to the planetarium since I was a little girl.

  • Forrest, April, and John are at the cutting edge of the most recent developments in planetarium education.

    Academic text (1993)
  • The teachers learn to integrate classroom astronomy units with planetarium visits and to encourage students to participate actively.

    Academic text (1993)
  • Earning a profit with a stargazing program can revive a planetarium or science center whose daytime sales are flagging.

    Academic text (2000)
  • The children were excited to watch the stars at the planetarium during their field trip.

Surface Forms

planetarium singular
planetariums plural

Morphology

planetarium = planet (transparent) = planet + arium

Formed from 'planet' + the place-forming suffix '-arium', so the meaning 'place for planets/planet displays' is directly inferable.

Etymology

Planetarium comes from planet, from an old word meaning 'wandering star', and the part -arium, which means 'place for' and is the same part in aquarium. So a planetarium is literally a 'place for planets', which is why it is a room or device that shows stars and planets on a domed ceiling.