ethereal oil

1 definition found

ethereal oil - Collaborative International Dictionary of English v.0.48 :

  Ethereal \E*the"re*al\, a.
     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.
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              Go, heavenly guest, ethereal messenger. --Milton.
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     2. Consisting of ether; hence, exceedingly light or airy;
        tenuous; spiritlike; characterized by extreme delicacy, as
        form, manner, thought, etc.
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              Vast chain of being, which from God began,
              Natures ethereal, human, angel, man.  --Pope.
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     3. (Chem.) Pertaining to, derived from, or resembling, ether;
        as, ethereal salts.
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     Ethereal oil. (Chem.) See Essential oil, under
        Essential.
  
     Ethereal oil of wine (Chem.), a heavy, yellow, oily liquid
        consisting essentially of etherin, etherol, and ethyl
        sulphate. It is the oily residuum left after
        etherification. Called also heavy oil of wine
        (distinguished from oil of wine, or [oe]nanthic ether).
  
     Ethereal salt (Chem.), a salt of some organic radical as a
        base; an ester.
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