| 单词 | solar flare |
| 释义 | solar flareSEE SYNONYMS FOR solar flare ON THESAURUS.COM noun Astronomy.flare (def. 22). Origin of solar flareFirst recorded in 1935–40 Words nearby solar flaresolar day, solar eclipse, solar elastosis, solar-electric propulsion, solar energy, solar flare, solar furnace, solar ganglion, solar-heat, solar heating, solar house Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for solar flaresolar flare nouna brief powerful eruption of particles and intense electromagnetic radiation from the sun's surface, associated with sunspots and causing disturbances to radio communication on earthSometimes shortened to: flare See also solar wind Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Scientific definitions for solar flaresolar flare A sudden eruption of hydrogen gas in the chromosphere of the Sun, usually associated with sunspots. Solar flares may last between several hours and several days, and have temperatures ranging from 20 to 100 million degrees K. The energy of a solar flare, which consists primarily of charged particles and x-rays, is comparable to tens of millions of hydrogen bombs, but is less than one-tenth the total energy emitted by the Sun every second. First observed in 1859, solar flares dramatically affect the Sun's weather and the solar wind, and are correlated with the appearance of auroras on the Earth. See also prominence. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. |
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