Definition of polypteroid in US English:

polypteroid

noun

Zoology
rare
  • A member of a group of fishes that includes the polypterids.

Origin

Mid 19th century; earliest use found in Theodore Gill (1837–1914). From scientific Latin Polypterus Polypterus + -oid.

Pronunciation

polypteroid

/pəˈlɪptərɔɪd/