energy level


Definition of energy level 

: one of the stable states of constant energy that may be assumed by a physical system used especially of the quantum states of electrons in atoms and of nuclei

called also energy state

Examples of energy level in a Sentence

Recent Examples on the Web

And the laws of quantum mechanics limit them to specific energy levels around atoms and molecules. Tim Folger, Discover Magazine, "How Quantum Mechanics Lets Us See, Smell and Touch," 24 Oct. 2018 Everyone is born with an acute sensitivity to energy level and hunger, though individual responses vary greatly. Heidi Mitchell, WSJ, "Is Getting ‘Hangry’ Actually a Thing?," 29 Aug. 2018 The goal with treatment is to help a person keep their mood, energy levels, and behavior more balanced. Korin Miller, SELF, "What’s the Difference Between Bipolar I and Bipolar II?," 12 Oct. 2018 Maybe your goal is a better mood, more confidence, higher energy levels, a stronger body, or all of the above—or something totally different. Alexa Tucker, SELF, "How to Break Out of a Workout Rut if You Sort of Hate Exercising," 23 Jan. 2018 Stress hormones and chemicals are released that increase heart rate, blood pressure, alertness and energy levels. Washington Post, "Science Says: How family separation may affect kids’ brains," 28 June 2018 Some of his research has found that slouching promotes low mood and decreased energy levels. Markham Heid, Time, "Easy Ways to Actually Improve Your Posture," 4 Apr. 2018 This time, the rover’s energy level is believed to be much lower. Washington Post, "NASA rover knocked out as gigantic dust storm envelops Mars," 13 June 2018 Over the past two games, the Pacers' usual energy level has been missing. Clifton Brown, Indianapolis Star, "Pacers fall behind Magic by 21, then engineer a thrilling comeback," 27 Jan. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'energy level.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of energy level

1910, in the meaning defined above

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Last Updated

30 Nov 2018

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The first known use of energy level was in 1910

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living or existing for a long time

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