Definition of fire-bellied in US English:

fire-bellied

adjective

  • In the names of animals, especially amphibians: having a bright red, orange, or yellow belly.

Origin

Mid 19th century; earliest use found in Proceedings of the Zoological Society of London. From fire + bellied.

Pronunciation

fire-bellied

/ˈfʌɪəbɛlɪd/