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energy

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Merriam-Webster's Collegiate Dictionaryen·er·gy \ˈe-nər-jē\ noun (plural -gies) ETYMOLOGY Late Latin energia, from Greek energeia activity, from energos active, from en in + ergon work — more at work DATE 15991. a. dynamic quality narrative energy b. the capacity of acting or being active intellectual energy c. a usually positive spiritual force the energy flowing through all people2. vigorous exertion of power : effort investing time and energy3. a fundamental entity of nature that is transferred between parts of a system in the production of physical change within the system and usually regarded as the capacity for doing work4. usable power (as heat or electricity); also : the resources for producing such powerSynonyms: see powerEnglish Etymologyenergy 1599, from M.Frhttp://M.Fr. energie, from L.L. energia, from Gk. energeia"activity, operation," from energos "active, working," from en- "at" + ergon "work" (see urge (v.)). Used by Aristotle with a sense of "force of expression;" broader meaning of "power" is first recorded in Eng. 1665. Energize "rouse to activity" is from 1753; energeticof persons, institutions, etc., is from 1796. Energy crisis first attested 1970.Oxford Advanced Learner's Dictionary-牛津双解-OALD7☞ energyen·ergy / 5enEdVi; NAmE -ErdVi / noun1. [U] the ability to put effort and enthusiasm into an activity, work, etc. 精力；活力；干劲: It's a waste of time and energy. 那是浪费时间和精力。 She's always full of energy. 她总是充满活力。 nervous energy (= energy produced by feeling nervous) 精神紧张而产生的精力 2. energies [pl.] the physical and mental effort that you use to do sth 精力；力量: She put all her energies into her work. 她把全部精力都投入到工作中去了。 creative / destructive energies 创造/毁灭力 3. [U] a source of power, such as fuel, used for driving machines, providing heat, etc. 能源: solar / nuclear energy 太阳能；核能 It is important to conserve energy. 节省能源十分重要。 an energy crisis (= for example when fuel is not freely available) 能源危机 4. [U] (physics 物) the ability of matter or radiation to work because of its mass, movement, electric charge, etc. 能；能量: kinetic / potential, etc. energy 动能、势能等 Oxford Collocations Dictionary for Students of EnglishOxford Collocations dictionary for students of Englishenergy noun 1 ability to be active/work hard ADJ. boundless, indefatigable, inexhaustible, unflagging I admire her boundless energy. | surplus | nervous, restless | youthful | creative There was a lack of creative energy in the British film industry. QUANT. amount, level You can judge how healthy you are by the amount of energy you have. | great deal Bringing up twins requires a great deal of energy. | burst With a sudden burst of energy, he ran to the top of the hill. VERB + ENERGY be bursting with, be full of, have The children are always full of energy. I don't seem to have any energy these days. | lack He never seems to lack energy. | expend, put She put all her energies into her work. | channel, devote, direct, turn We're trying to deal with young offenders by channelling their energy into sport rather than crime. | conserve, save | work off The kids were running around crazily, working off their surplus energy. | waste We don't want to waste our energy trying to persuade people who are just not interested. | sap The hills sapped his energy and he got off his bike for frequent rests. | dissipate The volunteers' energy was dissipated by the enormous amounts of paperwork involved in the project. ENERGY + VERB flag It was late and my energy was beginning to flag. PHRASES an outlet for your energy Football gives them an outlet for their energy. | a waste of energy It's a waste of energy cutting this grass?nobody's going to see it. 2 source of power ADJ. renewable the change from fossil fuels to renewable energy | atomic, nuclear, solar, wave, wind QUANT. amount The new power station produces vast amounts of energy. VERB + ENERGY generate, produce | harness attempts to harness solar energy | provide, supply | consume, use | store No battery could store enough energy to turn over a car's engine. | conserve, save | waste | need, require ENERGY + NOUN production | consumption, use | demand, needs, requirements total energy requirements for the coming year | supply The nuclear plant provides a fifth of the nation's energy supplies. | resources, sources | conservation, savings equipment that offers long-term energy savings | efficiency | bill, costs, prices | crisis, problem, shortage The country could face an energy crisis if demand continues to rise. | company, industry, sector state control of the energy industries | market The cost of solar power needs to fall before it makes an impact on the energy market. | management, plan, policy, programme, project, strategy a government-sponsored renewable energy project PHRASES a demand for energy The demand for energy and fuel is expected to increase dramatically. | energy-saving energy-saving features that can reduce energy bills by 50% | a form of energy, a source of energyOLTenergy noun⇨ energy 1 (nuclear/solar energy)⇨ energy 2 (full of energy)⇨ effort (your creative energies)Webster's Third New International Dictionary, Unabridgeden·er·gyI. \ˈenə(r)jē, -ji\ noun(-es)Etymology: Late Latin energia, from Greek energeia activity, operation, from energos active, effective, from en in + ergon work — more at in, work1. of language or style : imaginative or affective force : vitality2. : the capacity of acting, operating, or producing an effect :inherent power < an individual of great intellectual energy > < he expended his energies in useless tasks >3. : power efficiently and forcefully exerted : vigorous or effectual operation : vigorousness < the energy and success of an argument >4. a. : the realized state of potentialities as opposed to their unrealized state — compare entelechy b. (1) : activity; especially : psychical activity (2) : the product of activity : effect5. : an entity rated as the most fundamental of all physical concepts and usually regarded as the equivalent of or the capacity for doing work either being associated with material bodies (as a coiled spring or speeding train) or having an existence independent of matter (as light or X rays traversing a vacuum), its physical dimensions being the same as those of work ML2÷T2where M is mass, L length, and T time, usually being expressed in work units (as foot-pounds or ergs), and in any form being endowed with the properties of mass (as inertia, momentum, gravitation) by relativity which assigns to the energy E an equivalent mass m by the equation m=E÷c2 where c is the speed of light — see conservation of energy, kinetic energy, potential energy6. : muzzle energySynonyms: see powerII. noun: usable power ; also : the resources for producing such power

Energy Energy Energy. From The Work Power Waste