i have a kind of gadget car it moves on the ground , in the sea and it even can fly , that's a complete gadget
a machine that does several works , at least more than one  like a machine that moves on the ground , flys & moves on the sea or so
"i have a kind of gadget car it moves on the ground , in the sea and it even can fly , that's a complete gadget" What is the definition of "gadget"?