P3H4O1T1O1R1E1S1I1S1T1S1
17 points
PHOTORESISTS is validvalid
PHOTORESIST,
PHOTORESIST, an organic material that polymerizes on exposure to ultraviolet light and in that form resists attack by acids and solvents
PHOTORESIST,
PHOTORESIST, an organic material that polymerizes on exposure to ultraviolet light and in that form resists attack by acids and solvents