The Collaborative International Dictionary
Solarizing
Solarize \So"lar*ize\, v. t. [imp. & p. p. Solarized; p. pr. & vb. n. Solarizing.] (Photog.) To injure by too long exposure to the light of the sun in the camera; to burn.
Wiktionary
solarizing
vb. (present participle of solarize English)