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Definition of Ethereal
1. Adjective. Characterized by lightness and insubstantiality; as impalpable or intangible as air. "Physical rather than ethereal forms"
Similar to: Insubstantial, Unreal, Unsubstantial
Derivative terms: Airiness
2. Adjective. Of or containing or dissolved in ether. "Ethereal solution"
3. Adjective. Of heaven or the spirit. "The supernal happiness of a quiet death"
4. Adjective. Characterized by unusual lightness and delicacy. "Gossamer shading through his playing"
Definition of Ethereal
1. a. Pertaining to the hypothetical upper, purer air, or to the higher regions beyond the earth or beyond the atmosphere; celestial; as, ethereal space; ethereal regions.
Definition of Ethereal
1. airy [adj] - See also: airy
Medical Definition of Ethereal
1.
1. Pertaining to the hypothetical upper, purer air, or to the higher regions beyond the earth or beyond the atmosphere; celestial; as, ethereal space; ethereal regions. "Go, heavenly guest, ethereal messenger." (Milton)
2. Consisting of ether; hence, exceedingly light or airy; tenuous; spiritlike; characterised by extreme delicacy, as form, manner, thought, etc. "Vast chain of being, which from God began, Natures ethereal, human, angel, man." (Pope)
3.