solarise in WordNet English dictionary

1. expose to the rays of the sun or affect by exposure to the sun
   "insolated paper may turn yellow and crumble"; "These herbs suffer when sunned"
   sun  insolate  solarize  solarise 
   
2. overexpose to sunlight
   "be careful not to solarize the photographic film"
   solarize  solarise 
   
3. become overexposed
   "The film solarized"
   solarize  solarise 
   
4. reverse some of the tones of (a negative or print) and introduce pronounced outlines of highlights, by exposing it briefly to light, then washing and redeveloping it
   solarize  solarise 
   

solarise in English Wiktionary