1. Small, densely furred aquatic monotreme of Australia and Tasmania with a broad bill, tail, and webbed feet; only species in the family Ornithorhynchidae
   "The Ornithorhynchus anatinus uses its bill to detect electrical signals from prey";
   - platypus, duckbill, duckbilled platypus, duck-billed platypus

Type of: egg-laying mammal, monotreme

Part of: genus Ornithorhynchus, Ornithorhynchus

Encyclopedia: Ornithorhynchus anatinus