noun, noun or participle which takes 'suru'
atmospheric oxidation; air oxidation
Technical term for oxidation caused by exposure to air. The rare gloss 'smoothering' is likely a specialized or obsolete term.
金属が空気酸化して表面が変色した。
The metal oxidized in the air and its surface discolored.
この試料は空気
This sample is stored under a nitrogen atmosphere to prevent air oxidation.