The Collaborative International Dictionary of English v.0.48:

Dorian \Do"ri*an\, a.
   1. Of or pertaining to the ancient Greeks of Doris; Doric;
      as, a Dorian fashion.
      [1913 Webster]

   2. (Mus.) Same as Doric, 3. "Dorian mood." --Milton.
      [1913 Webster]

   Dorian mode (Mus.), the first of the authentic church modes
      or tones, from D to D, resembling our D minor scale, but
      with the B natural. --Grove.
      [1913 Webster]