Main Entry: chro·mo·sphere

Pronunciation: \ˈkrō-mə-ˌsfir\

Function: noun

Date: 1868

: the region of the atmosphere of a star (as the sun) between the star's photosphere and its corona

— chro·mo·spher·ic \ˌkrō-mə-ˈsfir-ik, -ˈsfer-\ adjective