Meaning of chromosphere

chro•mo•sphere

Pronunciation: (krō'mu-sfēr"), [key]
— n. Astron.
  1. a scarlet, gaseous envelope surrounding the sun outside the photosphere, from which enormous quantities of hydrogen and other gases are erupted.
  2. a gaseous envelope surrounding a star.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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