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density

den·si·ty [ dénssətee ] (plural den·si·ties)


noun 
Definition:
 
1. how full area is: the concentration of people or things within an area in relation to its size

2. physics relative mass: a measure of a quantity such as mass or electric charge per unit volume.
Symbol  ρ


3. electricity 
Same as  charge density


4. electricity 
Same as  current density


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