energy level definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
a state in which the energy of a physical system is well defined by quantum mechanics
energy level definition by American Heritage Dictionary
noun In both senses also called energy state.The American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
- The energy characteristic of a stationary state of a physical system, especially a quantum mechanical system.
- The stationary state of a quantum mechanical system.
energy level - Science Definition
One of a set of states of a physical system associated with a range of energies. Electrons in an atom, for example, can shift between the different energy levels corresponding to orbitals in different shells. Also called energy state.