fossorial
/fɒˈsɔːrɪəl/adjective
1- Zoology (of an animal) burrowing【动】（动物）掘土的。
1.1
- (of limbs) adapted for use in burrowing（肢）适于掘土的。
词源
mid 19th cent.: from medieval Latin fossorius （from Latin fossor 'digger', from fodere 'to dig'） + -AL.