a flow of electric current that keeps changing direction at a very fast rate
arc
NOUN
PHYSICS a flash HYPERLINK "https://www.macmillandictionary.com/dictionary/british/light_1" of light that happens when electricityflows between two separatedpoints arc
VERB
SCIENCE if electricityarcs, it makes HYPERLINK "https://www.macmillandictionary.com/dictionary/british/flash_1" a flash HYPERLINK "https://www.macmillandictionary.com/dictionary/british/light_1" of light as it flows between two separatepoints
arc light
NOUN
light HYPERLINK "https://www.macmillandictionary.com/dictionary/british/produce_1" that is produced when electricityflows between two separatedpoints blackout
NOUN
shortperiod when the supply to a building or district HYPERLINK "https://www.macmillandictionary.com/dictionary/british/stop_1"stopped, especially at night
brownout
NOUN
AMERICAN a temporaryreduction of electricpower in an area charge
NOUN
PHYSICS the amount or type of electrical force that something has. The protons in an atom have a positive charge, and the electrons have a negative charge. charge
VERB
to put electricity into a piece of electrical equipment such as a battery
conventional current
NOUN
an electric current that flows from positive to negative current
NOUN
flow HYPERLINK "https://www.macmillandictionary.com/dictionary/british/electricity" of electricity current electricity
NOUN
electricity that flows from one place to another
DC
ABBREVIATION
PHYSICS direct current: electric current that always flows in the same direction. Electric current that changes direction is called AC or alternating current.
direct current
NOUN
an electric current that flows in one direction only. It is the form in which batteries supply electricity. discharge
VERB
PHYSICS if something dischargeselectricity, or if electricity HYPERLINK "https://www.macmillandictionary.com/dictionary/british/discharge_1" is discharged, it flows out of that thing discharge
NOUN
PHYSICS the flow HYPERLINK "https://www.macmillandictionary.com/dictionary/british/electricity" of electricity, example from a piece HYPERLINK "https://www.macmillandictionary.com/dictionary/british/equipment" of equipment or during a storm electric
ADJECTIVE
used for carryingelectricity electric
ADJECTIVE
relating to electricity electrical
ADJECTIVE
relating to electricity electricity
NOUN
a form of energy that can producelight, heat, and power for machines, computers, televisions etc electrics
NOUN
BRITISH the electrical system in a building or machine electrification
NOUN
process HYPERLINK "https://www.macmillandictionary.com/dictionary/british/making"making something work by electricity, or of bringing HYPERLINK "https://www.macmillandictionary.com/dictionary/british/supply_1"supply HYPERLINK "https://www.macmillandictionary.com/dictionary/british/electricity"electricity to a building or town
electrified
ADJECTIVE
something that is electrified has electricitypassing through it electrify
VERB
to provide something such as a town or a transport system with a supply HYPERLINK "https://www.macmillandictionary.com/dictionary/british/electricity" of electricity
electromagnet
NOUN
a powerful magnet that uses an electric current passed in a wire around it to produce its force
electromagnetic
ADJECTIVE
relating to the use of an electric current to produce a magnetic field electronic
ADJECTIVE
using electricity and extremely small electrical parts such as microchips and transistors
electronic
ADJECTIVE
involving HYPERLINK "https://www.macmillandictionary.com/dictionary/british/electronic" the use of electronicequipment, especiallycomputers
electronically
ADVERB
by a piece of electronicequipment, especially a computer electronics
NOUN
electronicequipment, or equipment with electronicparts energy
NOUN
SCIENCE a form of power such as electricity, heat, or light that is used for makingthingswork flat
ADJECTIVE
a flat battery does not have enough power left in it flow
VERB
if an electriccurrentflows, it passescontinuously through something fuse
VERB
PHYSICSBRITISH if a piece HYPERLINK "https://www.macmillandictionary.com/dictionary/british/electrical_1"electricalequipmentfuses, or if someone fuses it, it stopsworking when a thin piece HYPERLINK "https://www.macmillandictionary.com/dictionary/british/wire_1"wire in it breaks because there is too much electricityflowing fused
ADJECTIVE
a piece of electrical equipment that is fused contains a fuse grid
NOUN
set HYPERLINK "https://www.macmillandictionary.com/dictionary/british/wire_1" of wires that carries HYPERLINK "https://www.macmillandictionary.com/dictionary/british/electricity" the electricity hydro
NOUN
CANADIAN electricalpower and heating hydroelectric
ADJECTIVE
usingwater power to produce
impedance
NOUN
measure HYPERLINK "https://www.macmillandictionary.com/dictionary/british/difficult" of how difficult it is for electricity HYPERLINK "https://www.macmillandictionary.com/dictionary/british/flow_1" to flow through a piece HYPERLINK "https://www.macmillandictionary.com/dictionary/british/electrical_1" of electricalequipment
impulse
NOUN
PHYSICS an electricalsignal, example one that is passed from a nerve to a muscle
induction
NOUN
PHYSICS the production of electrical or magnetic forces in an object by other electrical or magnetic forces near it
inductive
ADJECTIVE
SCIENCE relating to electrical or magnetic force that is produced by induction
input
NOUN
PHYSICS electrical or other energy that is put into a machine in series
PHRASE
in a system of connections that allowselectricity HYPERLINK "https://www.macmillandictionary.com/dictionary/british/pass_1" to pass from one part to another in the correctorder jolt
NOUN
suddenstrong increase in energy jump leads
NOUN
BRITISH electricalwires that you use for starting HYPERLINK "https://www.macmillandictionary.com/dictionary/british/car" a car, connecting it to the engine of another car live
ADJECTIVE
wire or equipment HYPERLINK "https://www.macmillandictionary.com/dictionary/british/connected"connected to the supply and has electricitygoing through it mains electricity
NOUN
publicsupply HYPERLINK "https://www.macmillandictionary.com/dictionary/british/electricity" of electricity for people to use in their homes, offices etc
micropower
NOUN
electrical power produced or used in small quantities, usually close to the place where it is needed so that large power stations are not needed the national grid
NOUN
in the UK, the system of wires that connects HYPERLINK "https://www.macmillandictionary.com/dictionary/british/place_1" the places where electricity is
negative
ADJECTIVE
PHYSICS with the same electrical charge as an electron negatively
ADVERB
PHYSICS with a negativeelectriccharge
neutral
ADJECTIVE
PHYSICS a neutral wire does not have an electrical charge
outage
NOUN
AMERICAN a powercut
outlet
NOUN
MAINLY AMERICAN an electricalpower
output
NOUN
electricity or powerproduced HYPERLINK "https://www.macmillandictionary.com/dictionary/british/piece_1" by a piece of equipment or an engine
overcharge
VERB
to put too much power into a battery
overload
VERB
PHYSICS to damage HYPERLINK "https://www.macmillandictionary.com/dictionary/british/electrical_1" an electrical system or a piece HYPERLINK "https://www.macmillandictionary.com/dictionary/british/electrical_1" of electricalequipment, putting too much electricity through it
SCIENCE the condition of having opposite electrical charges pole
NOUN
SCIENCE one of the two ends of a magnet or battery positive
ADJECTIVE
PHYSICS with the same electrical charge as a proton power
NOUN
supply HYPERLINK "https://www.macmillandictionary.com/dictionary/british/electricity" of electricity to your home, office, community etc power cut
NOUN
BRITISH a period when the electricitysupplystops
power failure
NOUN
a power power line
NOUN
a thick wire that carrieselectricity above or below the ground pylon
NOUN
one of a series of very tallmetalstructuresused for holding HYPERLINK "https://www.macmillandictionary.com/dictionary/british/wire_1"wires that carryelectricpowerhigh above the ground recharge
VERB
to put more power into a battery
resistance
NOUN
PHYSICS the ability of something to stop HYPERLINK "https://www.macmillandictionary.com/dictionary/british/flow_1" the flow HYPERLINK "https://www.macmillandictionary.com/dictionary/british/electricity" of electricity
rewire
VERB
to replace all the wires that carryelectricity in a building, car, or piece
semiconductor
NOUN
a solid substance such as silicon that allows some electricity to pass through it, used for making electronic equipment such as computers
shock
NOUN
suddenflow HYPERLINK "https://www.macmillandictionary.com/dictionary/british/electricity" of electricity that goes through your body that sometimes happens when you touchcertainobjects shock
VERB
to give someone an electricshock short
NOUN
PHYSICS a shortcircuit short
VERB
to short-circuit, or to make something do this
short circuit
NOUN
badconnection in the wires HYPERLINK "https://www.macmillandictionary.com/dictionary/british/piece_1" of a piece HYPERLINK "https://www.macmillandictionary.com/dictionary/british/electrical_1" of electricalequipment, which prevents HYPERLINK "https://www.macmillandictionary.com/dictionary/british/equipment" the equipment from working
short-circuit
VERB
to have a shortcircuit, or to make HYPERLINK "https://www.macmillandictionary.com/dictionary/british/piece_1" a piece HYPERLINK "https://www.macmillandictionary.com/dictionary/british/electrical_1" of electricalequipment have a shortcircuit
spike
NOUN
sudden increase in the amount of electricity that a system produces
static electricity
NOUN
electricity that does not flow in a current but is found in some objects when they rub together and can give an electric shock
substation
NOUN
podstansiya
place that electricitypasses through on its way from where it is produced to where it is used
surge
NOUN
sudden increase in electricalpower that can damageequipmentconnected to it
transducer
NOUN
a piece of equipment that gets power from one source and then changes that power so that it can be used by another system