- a connected series of spirals or rings that rope, wire, or the like has been formed into: A coil of string was wound around the pole.
- one of a connected series of spirals or rings that rope, wire, or the like has been formed into: Grab the first coil of the yarn and slip it over the other two.
- an arrangement of pipes wound up in a spiral or series, as in a radiator.
- a continuous pipe having inlet and outlet, or flow and return ends.
- an intrauterine device.
- Electricity.
- a conductor, such as a copper wire, wound up in a spiral or similar form.
- a device made up of this type of conductor.
- ignition coil.
- Philately.
- a stamp issued in a roll, usually of 500 stamps, and usually perforated vertically or horizontally only.
- a roll of such stamps.
- to wind into continuous, regularly spaced rings one above the other: The first step of this craft is to coil a wire around a pencil.
- to wind on a flat surface into a connected series of rings, one atop the other: He coiled the rope on the deck.
- to gather (rope, wire, etc.) into loops: She coiled the garden hose and hung it on the hook.
- to form rings, spirals, etc.; gather or retract in a circular way: The snake coiled, ready to strike.
- to move in or follow a winding course: The river coiled through the valley.
- a noisy disturbance; commotion; tumult.
- trouble; bustle; ado.
- to wind or gather (ropes, hair, etc) into loops or (of rope, hair, etc) to be formed in such loops
- to move in a winding course
- something wound in a connected series of loops
- a single loop of such a series
- an arrangement of pipes in a spiral or loop, as in a condenser
- an electrical conductor wound into the form of a spiral, sometimes with a soft iron core, to provide inductance or a magnetic field
- an intrauterine contraceptive device in the shape of a coil
- the transformer in a petrol engine that supplies the high voltage to the sparking plugs
- the troubles and activities of the world (in the Shakespearean phrase this mortal coil)
