ground-state

ground state

noun Physics.
the state of least energy of a particle, as an atom, or of a system of particles.
Also called ground level.


Origin:
1925–30

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Collins
World English Dictionary
ground state or ground level
 
n
Compare excited the lowest energy state of an atom, molecule, particle, etc
 
ground level or ground level
 
n

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

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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American Heritage
Science Dictionary
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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