English version

current in Oceanography topic

currentcurrent2 ●●○ W3 noun [countable] 🔊 🔊 1 HEOWATERa continuous movement of water in a river, lake, or seatideocean/sea/tidal etc current 🔊 Strong currents can be very dangerous for swimmers.2 a continuous movement of air 🔊 Some birds use warm air currents to help them fly.current of 🔊 currents of warm air rising from the plain3 TEEa flow of electricity through a wire 🔊 an electrical current alternating current, direct current4 an idea, feeling, or opinion that a particular group of people has 🔊 The committee reflects the different political currents within the organization.current of 🔊 There was an underlying current of discontent among teachers.Do not confuse with currant (=a dried grape or a type of berry).COLLOCATIONSADJECTIVES/NOUN + current an ocean/sea/river currentOcean currents carry young fish out to sea.a tidal current (=caused by the movement of the tides)Tidal currents make the seas around the islands very rough.strongOn surfing beaches, strong currents are common.fast/fast-flowingFast-flowing currents made the rescue job even harder.dangerous/treacherousBeaches usually have signs that warn of dangerous currents.verbsa current flowsSea currents flow at up to 12 miles per hour around parts of the coast.a current carries somebody/something (=makes them move along in the water)Their boat was moving fast, carried by the current.a current sweeps somebody/something (=carries them very powerfully, so that they cannot stop moving)The treacherous currents have swept away three swimmers in the past year.
Examples from the Corpus
currentThe design could be improved, he declared, by switching to alternating current.The tiny young drift on the ocean currents, until a few are lucky enough to land in a suitable place and begin a new life.It's dangerous to swim in the sea here because the current is so strong.Here the current is so strong that the shape of the cataract is constantly changing.Turn off the current before changing the fuse.The current in the river was very strong.The currents in these parts could carry a boat miles out to sea.ocean/sea/tidal etc currentNo more than 0.1% drives the wind, waves and ocean currents and a minute 0.03% is consumed in photosynthesis.A direct and obvious example is that many marine animals are dispersed around the globe by ocean currents.Some believe that it is because of unusually strong cold ocean currents, which improve the chances of penguins surviving the journey.This twice daily peristalsis creates tidal currents every six hours, pushing sea water first north, then south.Factoring in the effects of ocean currents, fickle winds, and errors in judgment, he then determined his longitude.It is very rarely still because of the strong tidal currents.The environmental organisation detected radionuclides in zooplankton from the tidal currents which flush Mururoa's lagoon.The ocean currents flow around these in the same way that winds blow around high and low centres of atmospheric pressure.air currentsOthers suggest that the buildup of mountains by tectonic movement may also serve as a trigger, by altering air currents.At rest, Arthur was an aged peregrine constantly scanning local air currents for unwary prey.Dive and glide in the blue sky then let the air currents carry you along.A large bird was riding the air currents below him, and he decided it must be an eagle.All the islands suffer from gusting caused by turbulent air currents over the cliffs.When the evening comes the female spruce budworm moth rises up on warm air currents.The weight of the glider and the woman slowed him down, but he could feel the warm air currents.The glider circled the escarpment and was carried with the warm air currents into the upper atmosphere.electrical currentDue to the radio waves which this equipment gives off, an electrical current is induced into the water.It's a unique beauty treatment that uses thermal clay and electrical currents to combat cellulite.During magnetic storms the intense electrical currents that f ow in the upper atmosphere heat the air, causing it to expand.The pattern is similar to that produced by the flow of electrical current around a circular defect in a plate.What had happened was that the passage of electrical current created huge magnetic forces which constricted the tube.From a mail-order house she ordered a battery-operated galvanic device which applied the stimulation of low-voltage electrical current to his paralyzed limbs.When electrical currents flow they produce magnetic fields and so it is possible that these two therapies amount to the same thing.