pH scale

Definitions of pH scale
  1. noun
    (from potential of Hydrogen) the logarithm of the reciprocal of hydrogen-ion concentration in gram atoms per liter; provides a measure on a scale from 0 to 14 of the acidity or alkalinity of a solution (where 7 is neutral and greater than 7 is more basic and less than 7 is more acidic);
    synonyms: pH
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    types:
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    acidity
    pH values below 7
    alkalinity
    pH values above 7
    neutrality
    pH value of 7
    hyperacidity
    excessive acidity
    type of:
    hydrogen ion concentration
    the number of moles of hydrogen ions per cubic decimeter
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