a brief powerful eruption of particles and intense electromagnetic radiation from the sun's surface, associated with sunspots and causing disturbances to radio communication on earth
Sometimes shortened to: flare. See also solar wind
solar flare in American English
a sudden, short-lived increase of intensity in the light of the sun, usually near sunspots, often accompanied by a large increase in cosmic rays, X-rays, etc. and by resultant magnetic storms
Examples of 'solar flare' in a sentence
solar flare
It could be the weather, which was far from stable, or a solar flare of the type prone to interfere with radio signals.