noun
Refers to white light in general, and also specifically to the corona visible around the sun during a total solar eclipse.
皆既日食のとき、太陽の周りに白光が見える。
During a total solar eclipse, a corona can be seen around the sun.
プリズムを通すと、白光は七色に分かれる。
When passed through a prism, white light splits into seven colors.