An extremely low frequency electrical current that occurs naturally over large underground areas at or near the surface of the Earth

Any more or less permanent or continuous, directed movement of water that flows in one of the Earth's oceans.

(physics) An electric current that always flows in the same direction but may differ in intensity over time. / (physics) A constant electric current.

(physics) An electric current in which the direction of flow of the electrons reverses periodically.

(physics) A net unidirectional movement of electrons, or other charge carriers, caused by a potential difference.

The unified currency proposed for all EU states; it became the Euro.

(physics) An eddy current.

(physics) An induced electric current formed within the body of a conductor when it is exposed to a time varying magnetic field; utilized in induction heating and in some braking and damping systems.

A city in Saskatchewan, Canada.

A cold ocean current originating in the Southern Ocean surrounding Antarctica, thence flowing northwards up the west coast of Africa as far as Angola. It provides nutrients for the sea life in the fishing grounds off the Cape of Good Hope.