n (1)铁锈(reddish-brown substance which forms on iron and steel，caused by air and moisture)[U]：The car was covered with～. 这辆汽车的表面全是锈。be full/free of～都是/没有锈;be badly corroded with～受到锈的严重腐蚀;a～remover/preventive 除锈剂/防锈措施;～patches 锈斑;〖同〗rot，decay;

(2)赤褐色(reddish-brown colour) [U]： a deep～深红锈色;Her hair was a lovely shade of～. 她的头发有点赤褐色，很可爱。a～carpet/leaf 赤褐色地毯/树叶;a～colour 赤褐色;〖同〗reddish-yellow，reddish-brown;

(3)锈病 (plant disease with rust-coloured spots)[U]：wheat～小麦锈病;

v (使)生锈((cause to)become covered with rust)[I，I+adv(away/though)，T+n，T+n+adv(away/through) 无pass]： Exposed iron will～. 露在外面的铁会生锈。The old lock/sink pipe has almost～ed away. 那把旧锁/水池的水管快锈透了。The rain has～ed the gate. 雨水使大门生锈了。The iron roof was badly～ed. 铁屋顶锈得很厉害。He allowed his talent/his mind to～over the years.(fig)这么多年了，他的才能/头脑变得迟钝了。〖同〗decay;

→′rusty adj 生锈的;荒疏(需要复习)的;′rustily adv 生锈地;′rustiness n 生锈