Children's, Intermediate and Advanced Online English Dictionary & Thesaurus

Comprehensive
Dictionary Suite
Help
Help
Help
 
   
Display options
 
Lookup History
planetarium

plan·e·tar·ium

planetarium

 
pronunciation:
plae n teI ri m
features:
Word Combinations (noun), Word Explorer, Word Parts
part of speech: noun
inflections: planetaria, planetariums
definition 1: an apparatus that projects a representation of the stars, planets, and the like, usu. upon a dome-shaped ceiling.
definition 2: a museum, building, or room in which such an apparatus is located.
definition 3: a structure, such as a mechanical model, that represents the position or motion of objects in the solar system.
Word CombinationsSubscriber feature About this feature
Word Explorer
See
  outer space, space
Word PartsSubscriber feature About this feature