Definition of chromosphere in English:

chromosphere

noun

Astronomy
  • A reddish gaseous layer immediately above the photosphere of the sun or another star which, together with the corona, constitutes its outer atmosphere.

    • ‘Prominences, flares, plages, and other features of the solar chromosphere can be observed in hydrogen light.’
    • ‘For decades astronomers labored to get good photographs of the chromosphere, and in particular its spectrum.’
    • ‘But the hotter hydrogen in the chromosphere and corona above it is madly emitting at the same wavelength.’
    • ‘The chromosphere is the first layer of atmosphere above the sun's surface layer.’
    • ‘Solar flares appear as sudden, intense flashes in the chromosphere of the Sun.’

Origin

Mid 19th century: from chromo- ‘colour’+ sphere.

Pronunciation:

chromosphere

/ˈkrəʊməsfɪə/