noun pl. auras -·ras or aurae -·rae (-rē)

1. an invisible emanation or vapor, as the aroma of flowers
2. a particular atmosphere or quality that seems to arise from and surround a person or thing enveloped in an aura of grandeur
3. a field of energy thought by some to emanate from all things in nature and to be visible to certain persons with psychic powers
4. Med. a warning sensation that precedes a seizure or other neurological disorder

Etymology: ME < L < Gr < IE *awer-: for base see wind