| 单词 | interstellar medium |
| 释义 | interstellar mediumnounthe matter occurring between the stars of our Galaxy, largely in the spiral arms, and consisting mainly of huge clouds of ionized, neutral, or molecular hydrogenAbbreviation: ISM Words nearby interstellar mediuminterstadial, interstate, Interstate Commerce Commission, Interstate Highway System, interstellar, interstellar medium, interstellar space, interstice, interstitial, interstitial cell, interstitial-cell-stimulating hormone 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 interstellar mediuminterstellar medium [ ĭn′tər-stĕl′ər ] Material, mostly hydrogen gas, other gases, and dust, occupying the space between the stars and providing the raw material for the formation of new stars. Nebulae are the most distinct areas of the interstellar medium; they appear when the clouds of gas and dust cluster due to interaction with nearby stars or star remnants. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. |
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