1. (noun) the class of vertebrates that live on land but breed in water; frogs; toads; newts; salamanders; caecilians

• class amphibia

1. (noun) the class of vertebrates that live on land but breed in water; frogs; toads; newts; salamanders; caecilians

• amphibian
• anura
• batrachia
• order anura
• order batrachia
• order salientia
• salientia
• caudata
• order caudata
• order urodella
• urodella
• genus hynerpeton
• hynerpeton
• genus ichthyostega
• gymnophiona
• order gymnophiona
• labyrinthodonta
• labyrinthodontia
• superorder labyrinthodonta
• superorder labyrinthodontia
• order stegocephalia
• stegocephalia
• polliwog
• pollywog
• tadpole

1. (noun) the class of vertebrates that live on land but breed in water; frogs; toads; newts; salamanders; caecilians

• class

1. (noun) the class of vertebrates that live on land but breed in water; frogs; toads; newts; salamanders; caecilians

• craniata
• subphylum craniata
• subphylum vertebrata
• vertebrata

1. (noun) the class of vertebrates that live on land but breed in water; frogs; toads; newts; salamanders; caecilians

• amphibian
• amphibious