Definition that contains caecilian
- class amphibia the class of vertebrates that live on land but breed in water; frogs; toads; newts; salamanders; caecilians
- gymnophiona an order of amphibians including caecilians
- order gymnophiona an order of amphibians including caecilians
- amphibia the class of vertebrates that live on land but breed in water; frogs; toads; newts; salamanders; caecilians