flash spectrum: Meaning and Definition of

flash' spec"trum

Pronunciation: [key]
— Astron. Astron.
  1. the emission spectrum of the chromosphere of the sun, which dominates the solar spectrum in the seconds just before and after a total solar eclipse.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
flash point flashtube
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