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phs

 
Noun ph has 1 sense
  1. pH, pH scale - (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)
    --1 is a kind of agency, federal agency, government agency, bureau, office, authority; hydrogen ion concentration; agency, federal agency, government agency, bureau, office, authority; hydrogen ion concentration
    --1 is a part of
     Department of Health and Human Services, Health and Human Services, HHS
    --1 has particulars: acidity; alkalinity; neutrality
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