PLANETARIUM

/plænɪˈtɛːɹɪəm/ Scrabble 15 Words With Friends 20

Scrabble letter values: P3L1A1N1E1T1A1R1I1U1M3 = 15

Definition

  1. noun a building housing an instrument for projecting the positions of the planets onto a domed ceiling.
  2. noun an optical device for projecting images of celestial bodies and other astronomical phenomena onto the inner surface of a hemispherical dome.
  3. noun an apparatus or model for representing the solar systems.

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