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PG-13
PGA
PGCA
PGCE
PGP
PGx
PH
Ph
pH
ph
Ph.B.
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PHA
phacoemulsification
phaeophyte
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pH
pH


noun 
Definition:
 
measure of acidity or alkalinity: a measure of acidity or alkalinity in which the pH of pure water is 7, with lower numbers indicating acidity and higher numbers indicating alkalinity.
Full form  potential of hydrogen
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