A natural oil obtained from the seeds of the flax plant (any of several plants of the genus Linum, especially L. usitatissimum'), used as the basis of drying oil vehicles and varnishes in the production of printing inks. Linseed oil that has been refined by exposure to high temperatures is called stand oil, a term which is also used in the United Kingdom to refer to linseed oil in general. Soaps or fatty acids of linseed oil are called linoleates and are frequently used in the manufacture of printing ink driers.
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