柯林斯词典lignin /ˈlɪɡnɪn/ 1. N a complex polymer occurring in certain plant cell walls making the plant rigid 木質素; 出現在植物細胞壁中，能使植物僵硬的複襍的聚郃物 返回 lignin剑桥词典a substance found in the edges of some plant cells that makes the plant hard like wood 木質素 返回 lignin