au·ra (ôr??)n. pl. au·ras or au·rae (ôr??) 1. An invisible emanation or field of energy believed to radiate from a person or object.2. A distinctive but intangible quality that seems to surround a person or thing; an atmosphere: An aura of defeat pervaded the candidate’s headquarters.3. Medicine A sensation, as of a cold breeze or a bright light, that precedes the onset of certain disorders, such as an epileptic seizure or an attack of migraine.[Middle English, gentle breeze, from Latin, from Greek aur?, breath; see wer- in Indo-European roots.]American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.aura (???r?) n, pl auras or aurae (???ri?) 1. a distinctive air or quality considered to be characteristic of a person or thing2. any invisible emanation, such as a scent or odour3. (Pathology) pathol strange sensations, such as noises in the ears or flashes of light, that immediately precede an attack, esp of epilepsy4. (Alternative Belief Systems) (in parapsychology) an invisible emanation produced by and surrounding a person or object: alleged to be discernible by individuals of supernormal sensibility[C18: via Latin from Greek: breeze]Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014au?ra (??r ?) n., pl. au?ras, for 3, au?rae (??r i) 1. a distinctive and pervasive quality or character; air; atmosphere: an aura of respectability. 2. a light or radiance claimed to emanate from the body and to be visible to certain individuals with psychic or spiritual powers. 3. a sensation, as of a glowing light or an aroma, preceding an attack of migraine or epilepsy. [1350?1400; Middle English