nounpl. -·puses or -·pi·
a small, aquatic, egg-laying monotreme mammal (Ornithorhynchus anatinus) of Australia and Tasmania, with webbed feet, a beaverlike tail, and a ducklike bill; duckbill
Origin of platypusModern Latin from Classical Greek platypous, flatfooted from platys, flat (see platy-) + pous, foot
A semiaquatic egg-laying mammal (Ornithorhynchus anatinus) of eastern Australia and Tasmania, having a broad flat tail, webbed feet, a snout resembling a duck's bill, and in the male, venomous spurs on the hind legs. Also called duckbill . Also called duck-billed platypus .
Origin of platypusNew Latin Platypūs former genus name from Greek platupous flat-footed platu- platy- pous foot ; see ped- in Indo-European roots.