1. having undergone oxidation caused by exposure to light, especially ultraviolet radiation
Usage: technical; chemistry

1. past tense and past participle of photooxidize; to cause (a substance) to undergo oxidation through exposure to light
Usage: technical; chemistry

Examples

• The polymer samples were photooxidized under controlled UV exposure.
• Photooxidized materials often show reduced mechanical strength.
• The researchers photooxidized the organic compounds to study their degradation pathways.
• Plastic films become brittle when photooxidized by prolonged sunlight.
• The photooxidized surface exhibited different chemical properties than the original material.