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
