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shell star

noun, Astronomy.
1.
a type of star showing bright emission lines superimposed on its normal absorption spectrum, presumably caused by a gaseous shell around the star.
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Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for shell star

shell star

noun
1.
(astronomy) a type of star, usually of spectral type B to F, surrounded by a gaseous shell
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
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