ethereal
adjective
/ɪˈθɪə.ɹɪ.əl/
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/ɪˈθɪɚ.i.əl/
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- Pertaining to the presupposition of an invisible air-like element permeating all of space, or to the higher regions beyond the earth or beyond the atmosphere.
- Consisting of ether; hence, exceedingly light or airy; tenuous; spiritlike; characterized by extreme delicacy, as form, manner, thought, etc.
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etereo
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ether
noun
/ˈi.θɚ/
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/ˈiː.θə/
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- (uncountable, literary, or, poetic) The substance formerly supposed to fill the upper regions of the atmosphere above the clouds, in particular as a medium breathed by deities.
- (uncountable, physics, historical) Often as aether and more fully as luminiferous aether: a substance once thought to fill all unoccupied space that allowed electromagnetic waves to pass through it and interact with matter, without exerting any resistance to matter or energy; its existence was disproved by the 1887 Michelson–Morley experiment and the theory of relativity propounded by Albert Einstein (1879–1955).
- (uncountable, organic compound) Diethyl ether (C4H10O), an organic compound with a sweet odour used in the past as an anaesthetic.
- (countable, organic compound) Any of a class of organic compounds containing an oxygen atom bonded to two hydrocarbon groups.
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etere
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