|1.||[ noun ] (zoology) primitive fish of the Mississippi valley having a long paddle-shaped snout|
|Related terms:||ganoid Polyodon|
|2.||[ adjective ] having a beak resembling that of a duck|
"a duck-billed dinosaur"
|3.||[ noun ] (zoology) small densely furred aquatic monotreme of Australia and Tasmania having a broad bill and tail and webbed feet; only species in the family Ornithorhynchidae|
|Synonyms:||duckbilled_platypus duck-billed_platypus Ornithorhynchus_anatinus platypus|
|Related terms:||monotreme Ornithorhynchus|