A coil of electrically conductive wire through which electricity can flow.
Any intrauterine device (Abbreviation: IUD)—the first IUDs were coil-shaped.
Entanglement; perplexity.
A noise, tumult, bustle, or turmoil.
Something wound in the form of a helix or spiral.
A cylinder of clay.
To build a pot (etc) with clay coils.
To wind cylindrically or spirally.
To wind or reel e.g. a wire or rope into regular rings, often around a centerpiece.
To wind into loops (roughly) around a common center.
An electrical switch, in a generator or motor, that periodically reverses the direction of an electric current.
A binary map in a given group G, given by [g, h] = ghg⁻¹h⁻¹, where g and h are elements of G, which yields the group's identity if and only if the group operation commutes for g and h.
A binary map in a given ring R, given by [a, b] = ab − ba, where a and b are elements of R, which yields the ring's zero element if and only if the multiplication operation commutes for a and b.