Connected by thin skin or membrane stretched between fingers or toes, like a duck's foot.
From 'web,' which comes from Old English 'wefan' meaning to weave. The '-ed' suffix turns it into an adjective describing something with web-like connections.
Webbed feet evolved independently in many different animals—ducks, frogs, otters, and even some dinosaurs—showing how nature keeps solving the same swimming problem.
Complete word intelligence in one call. Free tier — 50 lookups/day.