urushi

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Scope note
A hard, insoluble coating prepared from the resinous exudation of Toxicodendron vernicifluum and Toxicodendron succedaneum, native to China and Japan. It contains urushiol, hydrourushiol, some polysaccharides, laccase, and water. It thickens and solidifies by oxidative polymerization when exposed to humid air, forming a hard, durable film that takes a high polish or may have a matte finish, and may be carved or inset with inlays. It has been used for at least 6,000 years as a protective and decorative coating, applied to wooden furniture, musical instruments, weapons, jewelry, and household items.
urushi
Accepted term: 03-Feb-2025