reversing layer

noun
: the lowest layers of the sun's chromosphere which are perhaps a few hundred miles in depth and in which occurs the absorption that produces most of the dark lines in the solar spectrum; also : a corresponding region in the atmosphere of a star

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reversing layer noun
A layer of the sun's chromosphere that reverses bright lines of the spectrum to dark absorption lines
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Main Entry:reverse

Useful english dictionary. 2012.

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