duck-billed platypus

noun

1. A semi-aquatic egg-laying mammal native to eastern Australia, with a duck-like bill, webbed feet, and a broad flat tail.

   B2

   countable

   • "The duck-billed platypus is a strange animal that lives in Australia."A2
   • "The duck-billed platypus is one of the few mammals that lay eggs."B1
   • "Researchers studied how the duck-billed platypus detects its prey using electroreception."C1