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Definition of Fraunhofer line
1. Noun. (physics) any of a series of dark lines in the solar spectrum; due to the absorption of light by atoms and molecules in the Sun's atmosphere ¹
¹ Source: wiktionary.com
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1. Noun. (physics) any of a series of dark lines in the solar spectrum; due to the absorption of light by atoms and molecules in the Sun's atmosphere ¹
¹ Source: wiktionary.com