energy level

American  

[en-er-jee lev-uhl] / ˈɛn ər dʒi ˌlɛv əl /

noun

1. a comparative level of capacity for vigorous activity.

   The child has a high energy level.

2. Also called energy state.  Physics. one of a quantized series of states in which matter may exist, each having constant energy and separated from others in the series by finite quantities of energy.

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energy level British  

noun

1. a constant value of energy in the distribution of energies among a number of atomic particles

2. the energy of a quantum state of a system. The terms energy level and energy state are often used loosely to mean quantum state . This is avoided in precise communication

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Etymology

Origin of energy level

First recorded in 1905–10

Example Sentences

That means teams and drivers are constantly managing energy levels through a lap.

From BBC

The theory explained why electrons inside atoms occupy only certain allowed energy levels, a phenomenon known as quantization.

From Science Daily

The risk is that overtaking will be both more difficult, between cars with similar energy levels, and also ridiculously easy, between those with a large energy disparity.

From BBC

This kind of disturbance could account for the extreme energy levels Voyager 2 measured.

From Science Daily

He gamely saved four set points at 3-5 but with his energy levels dropping was unable to save a fifth as the Spaniard took control.

From Barron's