| 单词 | heliosphere |
| 释义 | heliosphere[ hee-lee-uh-sfeer ] / ˈhi li əˌsfɪər / noun Astronomy.the region around the sun over which the effect of the solar wind extends. Origin of heliosphereFirst recorded in 1970–75; helio- + -sphere Words nearby heliosphereheliopause, heliophyte, Heliopolis, Helios, helioscope, heliosphere, heliostat, heliotaxis, heliotherapy, heliotrope, heliotropic Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for heliosphereheliosphere / (ˈhiːlɪəʊˌsfɪə) / nounthe region around the sun outside of which the sun's influence is negligible and interstellar space begins 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 heliosphereheliosphere [ hē′lē-ə-sfîr′ ] The large, roughly elliptical region of space around the Sun through which the solar wind extends and through which the Sun exerts a magnetic influence. The heliosphere extends well beyond the orbits of the planets, and its shape and extent fluctuate with changes to the solar wind and other influences.♦ The boundary between the heliosphere and interstellar space is known as the heliopause. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. |
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