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

(physics) The temperature-dependent current that flows in a photodetector when no light is shining on it.

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

(geology) A fast-flowing downhill current (of air or water) that carries silt

Alternative form of electric current

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.

The transfer of heat by the movement of a fluid, usually as the result of convection

A strong flow of surface water, away from the shore, that returns water from incoming waves.

(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.