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| physical object > natural object > collection of particles > phase of matter > solid > quantum solid | 
| quantum solid comparison table | ||
| Subject | has definition | is a kind of | 
|---|---|---|
| solid | a high density collection of particle which do not move relative to one another (except for thermal oscillations) | phase of matter | 
| quantum solid | A degenerate gas in which the densities are so great that the nuclei are fixed with respect to each other so that they resemble a crystalline lattice. | solid | 
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