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2 definitions found

From: DICT.TW English-Chinese Dictionary 英漢字典

 pH /ˈpiˈeʧ/
 ph值

From: WordNet (r) 2.0

 pH
      n : (chemistry) p(otential of) H(ydrogen); 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 acidic and less than 7 is
          basic) [syn: pH scale]