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blown oil

noun

Definition of blown oil 

1 : a thickened oil obtained by blowing a fatty oil (such as linseed oil or a fish oil) and used in paints and varnishes as a drying oil and in lubricants

— called also oxidized oil

— compare bodied oil

2 : a semisolid or solid substance (such as an asphalt) obtained by blowing fluid bitumens or residual oils from the distillation of petroleum and used in paints and protective coatings

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