Earth |
| proper noun
- The third planet in order from the Sun, upon which humans live; represented in astronomy and astrology by � and �.
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eddy current |
| noun
- (physics) an induced electric current formed within the body of a conductor when it moves through a nonuniform magnetic field; utilized in induction heating and in some braking and damping systems
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elastance |
| noun
- (physics) An electrical property that is the inverse of capacitance.
- (medicine) A measurement of the tendency of the lung, urinary bladder, gallbladder or other cavity to recoil inwards. Opposite of compliance.
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electret |
| noun - (physics) a solid dielectric having a quasi-permanent charge; usually a metallized film; used in electroacoustic and electromechanical transducers and in air filters
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electric |
| noun
- (rare) An electric car.
- (archaic) A substance or object which can be electrified; an insulator or non-conductor, like amber or glass.
adjective
- Of, relating to, produced by, operated with, or utilising electricity; electrical.
- Of, or relating to an electronic version of a musical instrument that has an acoustic equivalent.
- Being emotionally thrilling; electrifying.
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electrical |
| adjective
- Related to electricity (or electronics)
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electrical engineering |
| noun - A The branch of engineering that deals with the technology of electricity, especially the design and application of circuitry and equipment for power generation and distribution, machine control, and communications.
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electric circuit |
| noun
- A path, or an interconnected group of paths (at least one of which is closed), capable of carrying an electric current.
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electric current |
| noun - (physics) the movement of electrons
- the flow of electricity through a conductor
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electric field |
| noun
- a region of space around a charged particle, or between two voltages; it exerts a force on charged objects in its vicinity
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electrician |
| noun
- A tradesman who installs and repairs electrical wiring and equipment
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electricity |
| noun
- A form of energy, caused by the behavior of electrons and protons, properly called "electrical energy".
- 2000, James Meek, http://www.guardian.co.uk/renewable/Story/0,2763,363461,00.html Home-made answer to generating electricity harks back to the past, The Guardian
- : Householders could one day be producing as much as all the country's nuclear power stations combined, thanks to the revolutionary application of a device developed in the early 19th century.
- A fundamental property of matter, appearing in negative and positive kinds.
- 1646, Sir Thomas Browne, Pseudodoxia Epidemica, 1st edition, p. 51 (First known English usage)
- : Again, The concretion of Ice will not endure a dry attrition without liquation; for if it be rubbed long with a cloth, it melteth. But quartz, Crystal will calefie unto ; that is, a power to attract strawes and light bodies, and rotate, convert versorium, the needle freely placed.
- The flow of charge carriers within a conductor, properly called "electric current".
- The charge carriers within a conductor, properly called "electric charge".
- 1873, James Clerk Maxwell, s:A Treatise on Electricity and Magnetism/Part I/Chapter II, A Treatise on Electricity and Magnetism
- : We may express all these results in a concise and consistent manner by describing an electrified body as charged with a certain quantity of , which we may denote by e.
- A class of physical phenomena, related to flows and interactions of electric charge
- A field of physical science and technology, concerned with the phenomena of electric charge
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electric motor |
| noun Electric motor
- A motor that converts electrical energy into kinetic energy.
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electric potential |
| noun
- the potential energy per unit charge at a point in a static electric field; voltage
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electrify |
| verb (electrif, i, ed)
- To communicate electricity to; to charge with electricity; as, to electrify a jar.
- To cause electricity to pass through; to affect by electricity; to give an electric shock to; as, to electrify a limb, or the body.
- To excite suddenly and violently, esp. by something highly delightful or inspiriting; to thrill; as, this patriotic sentiment electrified the audience.
- To become electric.
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electrode |
| noun
- the terminal through which electric current passes between metallic and nonmetallic parts of an electric circuit
- a collector or emitter of electric charge in a semiconducting device
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electrodynamometer |
| noun
- An instrument, having a fixed and a moveable coil, that measures the power flowing in an electric circuit; a wattmeter
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electroluminescence |
| noun - (physics) the generation of light by the application of an alternating current to a semiconductor or phosphor, or by an electric discharge through a gas
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electromagnet |
| noun (electromagnets)
- A magnet which attracts metals only when electrically activated
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electromagnetic |
| adjective - pertaining to electromagnetism
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electromagnetic induction |
| noun
- the production of an electrical potential difference in a conductor situated in a changing magnetic flux
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electromagnetic spectrum |
| noun
- The entire range of wavelengths of all known electromagnetic radiations extending from gamma rays through visible light, infrared, and radio waves, to X Rays. It is divided into 26 alphabetically designated bands, having frequencies of 0 to at least 1023 hertz.
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electromagnetism |
| noun
- A unified fundamental force that combines the aspects of electricity and magnetism and is one of the four fundamental forces. (technically it can be unified with weak nuclear to form electroweak) Its gauge boson is the photon.
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electromechanical |
| adjective
- Related to electricity (or electronics) and mechanics
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electrometer |
| noun
- A device used to detect and measure static electricity; an electroscope
- A precision voltmeter that draws almose no current from the circuit
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electromotive |
| adjective - (physics) of, relating to, or producing the movement of electrons (an electric current)
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electromotive force |
| noun (abbreviated as EMF)
- (physics) the energy (NOT force) per unit electric charge in a circuit; measured in volts
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electron |
| noun
- (particles) The subatomic particle having a negative charge and orbiting the nucleus; the flow of electrons in a conductor constitutes electricity.
- (context, chemistry, obsolete) An alloy of magnesium and aluminum.
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electroscope |
| noun
- (physics) a simple device that detects the presence of an electric charge by the mutual repulsion of metal foils or pith balls
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electrostatic |
| adjective - (physics) of, relating to, or produced by electrostatics or static electricity
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element |
| noun
- (chemistry) Any one of the simplest chemical substances that cannot be decomposed in a chemical reaction or by any chemical means and made up of atoms all having the same number of protons.
- One of the four basic building blocks of matter in theories of ancient philosophers and alchemists: water, earth, fire, and air.
- Something small.
- an of doubt
- A place or state of being that an individual or object is better suited towards.
- be in one's own
- A required aspect or component of a cause of action. A deed is regarded a violation of law only if each element can be proved.
- (set theory) One of the objects in a set.
- A group of people within a larger group having a particular common characteristic.
- You sometimes find the hooligan at football matches.
- A short form of heating element, a component in electrical equipment, often in the form of a coil, having a high resistance, thereby generating heat when a current is passed through it.
- The in this electric kettle can heat the water in under a minute.
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Em |
| proper noun
- Shortening of the given name Emily.
- Auntie , Auntie ...
abbreviation
- exametre, exameter
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EMF |
| initialism - (physics) electromotive force
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equalizer |
| noun
- One who makes equal; a balancer.
- A goal that equalizes the score.
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exciter |
| noun
- A person who excites
- The electronic oscillator that generates the carrier signal for a transmitter
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extension cord |
| noun
- An electrical cord with a plug one end, and a single socket or a multi-port socket at the other end, used for powering one or more devices at a distance, too far from the wall outlet to be reached by the normal cords of the device or devices. (slang: trip cord).
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