- Astronomy a sudden explosion in the chromosphere and corona of the sun or another star, resulting in an intense burst of radiation. See also solar flare.
mid 16th century (in the sense 'spread out one's hair'): of unknown origin. Current senses date from the 17th century
Do not confuse flair with flare. Flair means 'a natural ability or talent' (she had a flair for languages), whereas flare means 'burn suddenly' or 'become wider' (a flared skirt).