1. past tense and past participle of outgas: to release gas from within a material, especially under vacuum conditions or when heated
Usage: technical; materials science

Examples

• The plastic components were outgassed in a vacuum chamber before assembly.
• The spacecraft materials had to be outgassed to prevent contamination in space.
• The rubber seals outgassed volatile compounds when heated.
• Scientists outgassed the sample to remove trapped air molecules.
• The adhesive was outgassed to eliminate bubbles and impurities.
• New electronics are often outgassed to remove manufacturing residues.