atmospherium

noun at·mo·sphe·ri·um \ˌatməˈsfirēəm\

Definition of atmospherium

plural

-s

  1. 1 :  an optical device for projecting images of meteorological phenomena (such as clouds) on the inside of a dome

  2. 2 :  a room housing an atmospherium

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Origin and Etymology of atmospherium

blend of atmosphere and planetarium


First Known Use: 1960


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