energy level

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energy level

n.
1. The energy characteristic of a stationary state of a physical system, especially a quantum mechanical system.
2. The stationary state of a quantum mechanical system. In both senses also called energy state.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

energy level

n
1. (General Physics) a constant value of energy in the distribution of energies among a number of atomic particles
2. (General Physics) 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
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

en′ergy lev`el


n.
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.
Also called en′ergy state`.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.energy level - a definite stable energy that a physical system can have; used especially of the state of electrons in atoms or molecules; "according to quantum theory only certain energy levels are possible"
energy, free energy - (physics) a thermodynamic quantity equivalent to the capacity of a physical system to do work; the units of energy are joules or ergs; "energy can take a wide variety of forms"
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References in periodicals archive ?
Also on the horizon may be improved understanding of molecular energy states and, possibly, molecular lasers and Bose-Einstein condensates--collections of ultracold particles all in the same quantum state (SN: 7/15/95, p.

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