[at-muh s-feer-ee-uh m]

noun, plural at·mos·pher·i·a [at-muh s-feer-ee-uh] /ˌæt məsˈfɪər i ə/.

an optical system used to simulate images of atmospheric phenomena, as cloud formations, storms, and day and night, on the inside of a dome.
a building in which this projection system is used.

Nearby words

  1. atmospheric perspective,
  2. atmospheric pressure,
  3. atmospheric tide,
  4. atmospheric window,
  5. atmospherics,
  6. atn,
  7. atna,
  8. ato,
  9. atoll,
  10. atom

Origin of atmospherium

First recorded in 1955–60; atmospher(e) + (planetar)ium Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019