| 释义 |
Noun: planetarium (planetariums,planetaria) `plani'tehreeum- A building housing an instrument for projecting the positions of the planets onto a domed ceiling
- An optical device for projecting images of celestial bodies and other astronomical phenomena onto the inner surface of a hemispherical dome
- An apparatus or model for representing the solar systems
Derived forms: planetaria, planetariums Type of: building, edifice, model, optical device, simulation Encyclopedia: Planetarium |