ardian

/AA1 R D IY0 AH0 N/
noun
  1. 1

    (military, historical) A proposed but unadopted air-officer rank of the Royal Air Force equivalent to air vice-marshal.

  2. 2

    Alternative letter-case form of ardian. [(military, historical) A proposed but unadopted air-officer rank of the Royal Air Force equivalent to air vice-marshal.]