noun
1.A degree or level of energy possessed by something or required by a process.
‘gamma rays at different energies’
‘These particles should appear in profusion only at the very high energies at which the unification takes place.’
2.A person’s physical and mental powers.
‘an alternative is to devote your energies to voluntary work’
‘You combine different aspects and integrate energies to bring success after a period of struggle.’
3.Power derived from the utilization of physical or chemical resources, especially to provide light and heat or to work machines.
‘nuclear energy’
‘The first is that, like oil, nuclear energy is a finite resource.’
4.The property of matter and radiation which is manifest as a capacity to perform work (such as causing motion or the interaction of molecules)
‘a collision in which no energy is transferred’
‘These convert infrared, ultraviolet and visible light into energy at a higher efficiency.’
5.The strength and vitality required for sustained physical or mental activity.
‘changes in the levels of vitamins can affect energy and well-being’
‘The mental activity consumes energy and can, in the event of excess, lead to overstrain.’
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noun
‘gamma rays at different energies’
