dentiform

例句：

1. 1.The teeth of the dog are dentiform.
   狗的牙齿是齿状的。
2. 2.The dinosaur had denticles on its teeth.
   这种恐龙的牙齿上有齿状物。
3. 3. The fossils found in the cave were all denticulate.
   洞穴中发现的化石都是齿状的。