Definitions for "Toroid"
Toroid is the proper name for the shape of most transformers. A toroid is a solid ring with a hollow center (much like a donut)
a doughnut shaped coil of wire; a solenoid bent into a closed circle.
the doughnut-shaped object enclosed by a torus
Keywords:  toslink, sensitive, touch
TOSLink Touch Sensitive
Keywords:  axis, plane, curve, rotating, passing
a surface generated by rotating a closed cg plane curve around an axis in the plane of the curve, cg but not containing or passing through the curve