(electronics) A coil of wire attached to the apex of the cone of a loudspeaker that provides the motive force to the cone by the reaction of a magnetic field to the current passing through it.

(idiomatic, transitive, intransitive) to make, or become, coiled

Synonym of spark coil

A type of resonant transformer circuit used to produce high-voltage, low-current, high-frequency alternating-current electricity.

A machine that winds wire into electromagnetic coils. / A person whose job it is to wind electromagnetic coils.

(archaic) An induction coil.

An array of coils, fitted around the head, used in MRI scanning

A shorted coil (usually one turn) embedded in an alternating current pole face and encircling a portion of that face.

A type of knot used to secure a coiled rope.

A coil of wire that offers electrical resistance to the passage of a current.