planetarium: Meaning and Definition of
Pronunciation: (plan"i-târ'ē-um), [key]
— pl. -tar•i•ums, -tar•i•a
- an apparatus or model representing the planetary system.
- a device that produces a representation of the heavens by the use of a number of moving projectors.
- the building or room in which such a device is housed.
- planetarium (Thesaurus)