platypus

n. animal with a duck-like bill (native to Australia)

The Platypus (Ornithorhynchus anatinus) is a semi-aquatic mammal endemic to eastern Australia, including Tasmania. Together with the four species of echidna, it is one of the five extant species of monotremes, the only mammals that lay eggs instead of giving birth to live young. It is the sole living representative of its family (Ornithorhynchidae) and genus (Ornithorhynchus), though a number of related species have been found in the fossil record.
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Noun
1. small densely furred aquatic monotreme of Australia and Tasmania having a broad bill and tail and webbed feet; only species in the family Ornithorhynchidae
(synonym) duckbill, duckbilled platypus, duck-billed platypus, Ornithorhynchus anatinus
(hypernym) monotreme, egg-laying mammal
(member-holonym) Ornithorhynchus, genus Ornithorhynchus

n. platypus, animal with a duck-like bill (native to Australia)

(n.)
The duck mole. See under Duck.