SOLARISED
Scrabble letter values: S1O1L1A1R1I1S1E1D2 = 10
Definition
SOLARISED is the past tense of SOLARISE.
verb SOLARISE: 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.
Synonyms of SOLARISE: solarize