| 单词 | energy |
| 释义 | energy (once / 93 pages) 1n 2n 3n The general meaning of energy is the ability to be active. If you have a lot of energy, it means you like to be active. If you plan a low-energy day, it means a day of lounging around. Energy is from Greek energeia "activity, operation," from energos "active, effective," from en "in" plus ergon "work." Specialized senses of the word energy include the power that comes from sources such as heat or electricity, and the ability of sources such as heat or light to do work. In physics, an erg is the centimeter-gram-second unit used to measure the amount of energy or the amount of work done. WORD FAMILYenergy: energetic, energies, energise, energize+/energetic: energetically, unenergetic, unenrgetic/energise: de-energise, energised, energiser, energises, energising/energiser: energisers/energize: de-energize, energized, energizer, energizes, energizing/energizer: energizers/energizing: energizingly, energizings/unenergetic: unenergetically USAGE EXAMPLESMany utility companies offer free energy audits to their customers. Washington Post(Dec 22, 2016) The woman told her the massage used energy to heal. Washington Times(Jan 03, 2017) They brought us an energy and a toughness that we lack a lot of the times on the defensive end. Los Angeles Times(Jan 02, 2017) 1 1n forceful exertion he plays tennis with great energy Syn|Hypo|Hyper vigor, vigour, zip athleticism, strenuosity intense energy force, forcefulness, strength physical energy or intensity 2n enterprising or ambitious drive Europeans often laugh at American energy Syn|Hypo|Hyper get-up-and-go, push second wind renewed energy or strength to continue an undertaking drive the trait of being highly motivated 3n a healthy capacity for vigorous activity 2jogging works off my excess energy Syn|Hypo|Hyper vim, vitality juice energetic vitality ch'i, chi, ki, qithe circulating life energy that in Chinese philosophy is thought to be inherent in all things; in traditional Chinese medicine the balance of negative and positive forms in the body is believed to be essential for good health good health, healthiness the state of being vigorous and free from bodily or mental disease n an imaginative lively style (especially style of writing) 3his writing conveys great energy Syn|Hypo|Hyper muscularity, vigor, vigour, vim verve, vitality an energetic style light, spark, sparkle, twinklemerriment expressed by a brightness or gleam or animation of countenance life, liveliness, spirit, sprightliness animation and energy in action or expression 1n any source of usable power the DOE is responsible for maintaining the energy policy Hyper physical phenomenon a natural phenomenon involving the physical properties of matter and energy 2n (physics) a thermodynamic quantity equivalent to the capacity of a physical system to do work; the units of energy are joules or ergs energy can take a wide variety of forms Syn|Hypo|Hyper free energy activation energy, energy of activation the energy that an atomic system must acquire before a process (such as an emission or reaction) can occur alternative energyenergy derived from sources that do not use up natural resources or harm the environment atomic energy, nuclear energythe energy released by a nuclear reaction binding energy, separation energythe energy required to separate particles from a molecule or atom or nucleus; equals the mass defect chemical energythat part of the energy in a substance that can be released by a chemical reaction electrical energy, electricityenergy made available by the flow of electric charge through a conductor energy level, energy statea definite stable energy that a physical system can have; used especially of the state of electrons in atoms or molecules rest energythe energy equivalent to the mass of a particle at rest in an inertial frame of reference; equal to the rest mass times the square of the speed of light work(physics) a manifestation of energy; the transfer of energy from one physical system to another expressed as the product of a force and the distance through which it moves a body in the direction of that force heat, heat energya form of energy that is transferred by a difference in temperature mechanical energyenergy in a mechanical form radiant energyenergy that is transmitted in the form of (electromagnetic) radiation; energy that exists in the absence of matter radiationenergy that is radiated or transmitted in the form of rays or waves or particles AC, alternating current, alternating electric currentan electric current that reverses direction sinusoidally atomic power, nuclear powernuclear energy regarded as a source of electricity for the power grid (for civilian use) ionizing radiationhigh-energy radiation capable of producing ionization in substances through which it passes cosmic radiationradiation coming from outside the solar system DC, direct current, direct electric currentan electric current that flows in one direction steadily signalan electric quantity (voltage or current or field strength) whose modulation represents coded information about the source from which it comes electromagnetic radiation, electromagnetic wave, nonparticulate radiationradiation consisting of waves of energy associated with electric and magnetic fields resulting from the acceleration of an electric charge geothermal energyenergy derived from the heat in the interior of the earth K.E., kinetic energythe mechanical energy that a body has by virtue of its motion heat of dissociationthe heat required for a fluid substance to break up into simpler constituents heat of formationthe heat evolved or absorbed during the formation of one mole of a substance from its component elements heat of solutionthe heat evolved or absorbed when one mole of a substance is dissolved in a large volume of a solvent heat of transformation, latent heatheat absorbed or radiated during a change of phase at a constant temperature and pressure specific heatthe heat required to raise the temperature of one gram of a substance one degree centigrade luminous energythe energy associated with visible light P.E., potential energythe mechanical energy that a body has by virtue of its position; stored energy solar energy, solar powerenergy from the sun that is converted into thermal or electrical energy solar radiationradiation from the sun wind generation, wind powerpower derived from the wind (as by windmills) physical phenomenon a natural phenomenon involving the physical properties of matter and energy Energy (once / 893 pages) n WORD FAMILY Energy: Energies USAGE EXAMPLES“My life is full of miracles. Energy is everything,” she said. Washington Times(Jan 03, 2017) Carbon capture is proving itself, said David Mohler, the deputy assistant secretary for clean coal and carbon management at the federal Energy Department. New York Times(Jan 02, 2017) The Federal Energy Regulatory Commission included the finding in its draft environmental impact statement for the proposed Atlantic Coast Pipeline, released Friday. Washington Post(Dec 30, 2016) n the federal department responsible for maintaining a national energy policy of the United States; created in 1977 Syn|Hyper DOE, Department of Energy, Energy Department executive department a federal department in the executive branch of the government of the United States |
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