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Phrases starting with the letter: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Previous word: Fraunhofer
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Definition of: Fraunhofer's lines

A series of groups of dark lines in the spectrum of the sun and other stars, each group appearing to the eye as a single transverse line: also called F lines.

Phrases starting with the letter: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

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