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ground state

noun, Physics.
1.
the state of least energy of a particle, as an atom, or of a system of particles.
Also called ground level.
Origin
1925-1930
1925-30
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for ground state
  • Another possibility is to cool the flakes to their mechanical ground state and use them as spinning qubits.
  • It is still higher than in the ground state, but not as much higher as the energy of the absorbed photon.
British Dictionary definitions for ground state

ground state

noun
1.
the lowest energy state of an atom, molecule, particle, etc Compare excited (sense 4)
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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ground state in Medicine

ground state n.
The state of least possible energy in a physical system, as of atoms or molecules.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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ground state in Science
ground state  
The state of a physical system having the lowest possible potential energy. For example, an electron in the lowest energy orbital in a hydrogen atom is in a ground state. The ground state of a physical system tends to be stable unless energy is applied to it from the outside; states that are not the ground state have a tendency to revert to the ground state, giving off energy in the process. Compare excited state.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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