Definition of polyodontid in US English:

polyodontid

adjective

Zoology
  • Of or relating to the family Polyodontidae, comprising the paddlefishes, which have a large number of very small teeth.

noun

Zoology
  • A fish of the family Polyodontidae; a paddlefish.

Origin

1940s. From scientific Latin Polyodontidae, family name from Hellenistic Greek πολυόδους having many teeth (from ancient Greek πολυ- + ὀδοντ-, ὄδους tooth: see -odont) + scientific Latin -idae, after Polyodon, genus name.

Pronunciation

polyodontid

/ˌpɒlɪəˈdɒntɪd/