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concentration gradient

noun, Chemistry
the gradual difference in concentration of a dissolved substance in a solution between a region of high density and one of lower density.
Also called density gradient. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for concentration gradient
  • Once found, they follow the chemicals' concentration gradient back to their source.
  • If they both ran in the same direction there wouldn't be a concentration gradient.
  • The theory for thermoacoustic mixture separation is extended to include the effects of a nonzero concentration gradient.

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