serrated

serrated
/sɪˈreɪtɪd; ?@ ˈsereɪtɪd; `sɛretɪd/ adj
having notches on the edge like a saw; having a toothed edge 边缘呈锯齿状的; 有锯齿形边缘的
    a knife with a serrated blade 有锯齿形刃的刀子
    serrated leaves 有锯齿形边缘的叶子.

牛津英汉双解词典