planetarium
英[,pl?n?'te?r??m]
美['pl?n?'t?r??m]
- n. 天文館；行星儀
英英釋意
- 1. a building housing an instrument for projecting the positions of the planets onto a domed ceiling
- 2. an optical device for projecting images of celestial bodies and other astronomical phenomena onto the inner surface of a hemispherical dome
- 3. an apparatus or model for representing the solar systems