coil

A wireless signal can be sent that creates a current in a coil surrounding the pin, affecting its magnetic field and dropping the gadget.

Internal air chambers simulate traditional coils, and a double-lock valve helps keep air from escaping, and the convenient two-pack makes for an economic option when outfitting a family.

This mattress gets high marks for its double-height construction and the 40 internal air chambers in the top of the mattress that simulate the individual coils of a traditional mattress.

Each notebook is bound with a spiral lock coil binding that helps prevent the coils from catching on other things in your backpack.

That change in the magnetic field around the coil generates an electric current that also can be used to power the device.

Macavoy, stripped to the waist, and carrying only a hatchet and a coil of rope tied round him, started away alone up the river.

But John Rosedew and the life–boatmen held hard upon the coil of it, and drew him with all their might back again.

When I turned, he was lying in long loose waves, like a letter 'W.' He twitched and began to coil slowly.

The period of complete swing of the coil under experimental  conditions is about 11 seconds.

It takes time to get a full-sized stream going through a coil because of the inductance of the coil.