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ph - Dictionary definition and meaning for ph
PH
(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 scale
WordNet® 3.0, © 2006 by Princeton University.
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