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energy British & World English

The strength and vitality required for sustained physical or mental activity

energy English Thesaurus

she set out feeling full of energy

dark energy British & World English

A theoretical form of energy postulated to act in opposition to gravity and to occupy the entire universe, accounting for most of the energy in it and causing its expansion to accelerate

free energy British & World English

A thermodynamic quantity equivalent to the capacity of a system to do work

mass energy British & World English

The mass of a body regarded as energy, according to the laws of relativity

wind energy British & World English

Electrical energy obtained from harnessing the wind with windmills or wind turbines

atomic energy British & World English

Another term for nuclear energy.

energy audit British & World English

An assessment of the energy needs and efficiency of a building or buildings

energy drink British & World English

A soft drink containing a high percentage of sugar, caffeine, or another stimulant, typically consumed during or after sporting activity or as a way of overcoming tiredness

energy level British & World English

The fixed amount of energy that a system described by quantum mechanics, such as a molecule, atom, electron, or nucleus, can have

energy-saving British & World English

Designed to make economical use of electricity, gas, or other forms of energy

solar energy British & World English

Radiant energy emitted by the sun

strain energy British & World English

Energy stored in an elastic body under loading

binding energy British & World English

The energy that holds a nucleus together. This is equal to the mass defect of the nucleus

internal energy British & World English

The energy in a system arising from the relative positions and interactions of its parts

kinetic energy British & World English

Energy which a body possesses by virtue of being in motion

lattice energy British & World English

A measure of the energy contained in the crystal lattice of a compound, equal to the energy that would be released if the component ions were brought together from infinity

nuclear energy British & World English

The energy released during nuclear fission or fusion, especially when used to generate electricity

activation energy British & World English

The minimum quantity of energy which the reacting species must possess in order to undergo a specified reaction

alternative energy British & World English

Energy fuelled in ways that do not use up the earth’s natural resources or otherwise harm the environment, especially by avoiding the use of fossil fuels or nuclear power

potential energy British & World English

The energy possessed by a body by virtue of its position relative to others, stresses within itself, electric charge, and other factors

renewable energy British & World English

Energy from a source that is not depleted when used, such as wind or solar power

Gibbs free energy British & World English

A thermodynamic quantity equal to the enthalpy (of a system or process) minus the product of the entropy and the absolute temperature

conservation of energy British & World English

A principle stating that energy cannot be created or destroyed, but can be altered from one form to another

energy efficiency ratio British & World English

The ratio of a heating or cooling system’s output, per hour, in British thermal units to the input in watts, used to measure the system’s efficiency

International Energy Agency British & World English

An agency founded in 1974, within the framework of the OECD, to coordinate energy supply and demand worldwide. Its headquarters are in Paris

European Atomic Energy Community British & World English

An institution established in 1957 to aid the exploitation of nuclear discoveries in Europe

International Atomic Energy Agency British & World English

An international organization set up in 1957 to promote research into and the development of atomic energy for peaceful purposes

bioenergy British & World English

Renewable energy produced by living organisms

G in Gibbs free energy British & World English

A thermodynamic quantity equal to the enthalpy (of a system or process) minus the product of the entropy and the absolute temperature

equipartition British & World English

The equal distribution of the kinetic energy of a system among its various degrees of freedom

equipartition of energy in equipartition British & World English

The equal distribution of the kinetic energy of a system among its various degrees of freedom


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