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Noun: aether  ee-thu(r)
  1. A medium that was once supposed to fill all space and to support the propagation of electromagnetic waves
    - ether
Noun: Aether
  1. Personification of the sky or upper air breathed by the Olympians; son of Erebus and night or of Chaos and darkness

Derived forms: aethers

Type of: Greek deity, medium

Encyclopedia: Aether