Hypertext Webster Gateway: "photosphere"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Photosphere \Pho"to*sphere\, n. [Photo- + sphere.]
A sphere of light; esp., the luminous envelope of the sun.
From WordNet (r) 1.7 (wn)
photosphere
n : the intensely luminous surface of the sun
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