1. [v]  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"
2. [v]  overexpose to sunlight; of photographic film
3. [v]  become overepxosed, of photographic film
4. [v]  photography: 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

SOLARISE is a 8 letter word that starts with S.