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atmospherium

[ at-muhs-feer-ee-uhm ]

noun

, plural at·mos·pher·i·a [at-m, uh, s-, feer, -ee-, uh].
  1. an optical system used to simulate images of atmospheric phenomena, as cloud formations, storms, and day and night, on the inside of a dome.
  2. a building in which this projection system is used.


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Word History and Origins

Origin of atmospherium1

First recorded in 1955–60; atmospher(e) ( def ) + (planetar)ium ( def )

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