selenodont /sɪˈliːnəˌdɒnt/

• 1.  

  ADJ（形容词） (of the teeth of certain mammals) having crescent-shaped ridges on the crowns, as in deer 有月齿的(哺乳动物)
• 2.  

  N（名词） a mammal with selenodont teeth 月齿动物