Definition from Wiktionary, the free dictionary
Locrian (not comparable)
- Pertaining to the ancient Greek region of Locris.
- (music) Designating an ancient Greek mode, of uncertain detail.
- 1973: scattered piano keys (all white, an octave on B to be exact—or H, in the German nomenclature—the notes of the rejected Locrian mode) — Thomas Pynchon, Gravity's Rainbow
- (music) Designating a minor scale with the second and fifth scale degrees lowered by a semitone.