/
ˈɔːrə/
n.
 (pl. aurae  
/-riː/
 or auras)
   - the distinctive atmosphere or quality that seems to be generated by someone or something.
- (in spiritualism and some forms of alternative medicine) a supposed emanation surrounding the body of a living creature.
- Medicine  a warning sensation experienced before an attack of epilepsy or migraine.
Etymology
ME, lit. ‘a gentle breeze’: via L. from Gk, ‘breeze, breath’.