A flat curved airfoil, that spins about an axis perpendicular to the direction of flight, that was originally used in various parts of the world as hunting weapons or, in returnable types, for sports or training.
User Defined Definitions
"a curved piece of wood; when properly thrown will return to thrower"
"a miscalculation that recoils on its maker"
"return to the initial position from where it came; like a boomerang"