fraunhofer lines

from The Collaborative International Dictionary of English v.0.48
Fraunhofer lines \Fraun"ho*fer lines`\prop. n. pl.. (Physics.)
   The lines of the spectrum; especially and properly, the dark
   lines of the solar spectrum, so called because first
   accurately observed and interpreted by Fraunhofer, a German
   physicist.
   [1913 Webster]
antiflux / dictionary / fraunhofer lines
[email protected]