A toxic substance present in the resin or on the surface of plants of the genus Rhus, including poison ivy and the lacquer tree, from which a black Japanese lacquer is obtained.

• 漆酚盐睛木属植物（如毒漆和漆树）的表皮或树脂里的一种有毒物质，从中可提取一种黑色的日本漆