Upper region of space - Crossword Clue

Below are possible answers for the crossword clue Upper region of space.

5 letter answer(s) to upper region of space

ETHER
  1. a colorless volatile highly inflammable liquid formerly used as an inhalation anesthetic
  2. a medium that was once supposed to fill all space and to support the propagation of electromagnetic waves
  3. any of a class of organic compounds that have two hydrocarbon groups linked by an oxygen atom
  4. the fifth and highest element after air and earth and fire and water; was believed to be the substance composing all heavenly bodies

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