noun (plural energies)
- 1The strength and vitality required for sustained physical or mental activity: changes in the levels of vitamins can affect energy and well-beingMore example sentences
vitality, vigor, life, liveliness, animation, vivacity, spirit, spiritedness, verve, enthusiasm, zest, vibrancy, spark, sparkle, effervescence, ebullience, exuberance, buoyancy, sprightliness; strength, stamina, forcefulness, power, dynamism, drive; fire, passion, ardor, zeal• informal zip, zing, pep, pizzazz, punch, bounce, oomph, moxie, mojo, go, get-up-and-go, vim and vigor, feistiness
- The mental activity consumes energy and can, in the event of excess, lead to overstrain.
- The main modifiable factors affecting energy balance are dietary energy intake and energy expended through physical activity.
- When people are under stress, they don't have as much energy for physical or mental activity.
- 1.1 (energies) A person’s physical and mental powers, typically as applied to a particular task or activity.More example sentences
- There is a need to focus mental energies and prepare yourself to face competition.
- You are a physical person, but you know how to control and use of your physical energies.
- I was amazed at the creative energies expended in getting people to give and increase their pledges.
- 2Power derived from the utilization of physical or chemical resources, especially to provide light and heat or to work machines.More example sentences
- These include global warming, energy efficiency and renewable energy resources.
- It will also provide virtually unlimited energy and material resources for humankind.
- That efficiency will include solar power, recyclable energy and heat retention.
- 3 Physics The property of matter and radiation that is manifest as a capacity to perform work (such as causing motion or the interaction of molecules): a collision in which no energy is transferredMore example sentences
- Why is that electrons radiate electromagnetic energy when they are accelerated?
- If a particle moves faster than the speed of light, it must create a shockwave, and radiate energy.
- The protons are set in motion and, being charged, they again deposit energy through electrical interactions.
- 3.1A degree or level of energy possessed by something or required by a process.More example sentences
- We have seen that in an atom, possible electron energies come in a discrete series of distinct levels.
- The enormous energies required to do this are needed to reveal the quantum nature of gravity.
- These particles should appear in profusion only at the very high energies at which the unification takes place.
mid 16th century (denoting force or vigor of expression): from French énergie, or via late Latin from Greek energeia, from en- 'in, within' + ergon 'work'.