If something is solarized, it means it has been changed by the sun's light, often in a photograph.
Solarized things might look strange or different, like they are from a dream.
Examples:
The picture looks solarized because it was left in the sun.
I will solarize this photo by leaving it in the sun.
The solarized photo looks like a dream.
The solarized picture looks like it's from another world!
After being in the sun for a long time, the photo became completely solarized.
The artist solarized the photo to make it look special.