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ground plan
ground plum
ground rent
ground rule
ground sloth
ground speed
ground squirrel
ground staff
ground state
ground substance
ground wave
Ground Zero
ground zero
groundbait
groundbreaking
groundburst
grounded
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ground state
ground state (plural ground states)


noun 
Definition:
 
lowest energy of particle or system: the state of lowest energy for a particle, atom, molecule, or system
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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