coil

Something wound in the form of a helix or spiral.

"the sinuous coils of a snake"

Any intrauterine device (Abbreviation: IUD)—the first IUDs were coil-shaped.

A coil of electrically conductive wire through which electricity can flow.

Entanglement; perplexity.

To wind or reel e.g. a wire or rope into regular rings, often around a centerpiece.

"A simple transformer can be made by coiling two pieces of insulated copper wire around an iron heart."

To wind into loops (roughly) around a common center.

"The sailor coiled the free end of the hawser on the pier."

To wind cylindrically or spirally.

"The snake coiled itself before springing."

To encircle and hold with, or as if with, coils.

A noise, tumult, bustle, or turmoil.