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Noun: ether  ee-thu(r)
  1. Any of a class of organic compounds that have two hydrocarbon groups linked by an oxygen atom
     
  2. A medium that was once supposed to fill all space and to support the propagation of electromagnetic waves
    - aether
     
  3. A colourless volatile highly inflammable liquid formerly used as an inhalation anaesthetic
    - ethoxyethane, divinyl ether, vinyl ether, diethyl ether, ethyl ether
     
  4. [archaic] The fifth and highest element after air and earth and fire and water; was believed to be the substance composing all heavenly bodies
    - quintessence [archaic]

Derived forms: ethers

Type of: element, inhalation anaesthetic, inhalation anesthetic, inhalation general anaesthetic, inhalation general anesthetic, medium, organic compound

Encyclopedia: Ether, North Carolina