<unk>  most commonly refers to: *<unk>  (paranormal), a field of luminous multicolored radiation around a person or object *<unk>  (symptom), a symptom experienced before a migraine or seizure<unk>  may also refer to:
Aura
Adina
DermAtlas
Choroid
Microgyrus
Syrinx 
Arnica
Skull