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wool grease[′wu̇l ‚grēs]
A highly complex mixture of wax ester, alcohols, and fatty acids coating the surface of sheep wool fibers and obtained by scouring the wool with soap or synthetic detergent; used in the manufacture of lanolin and its derivatives, for dressing leather, and in lubricating and slushing oils, soaps, and ointments. Formerly known as degras. Also known as wool fat; wool oil; wool wax.