caecilian
/siːˈsɪlɪən/(亦作coecilian)
noun
1- Zoology a burrowing worm-like amphibian of a tropical order distinguished by poorly developed eyes and the lack of limbs【动】蚓螈。
1.1
- Order Gymnophiona (or Apoda): five families.蚓螈目（或无足目）：5科。
词源
from modern Latin Caecilia (genus name), from Latin caecilia 'slow-worm', + -AN.