noun. A consonant digraph having the sound of ƒ, used in the Latin or English, French, etc., transliteration of Greek words containing φ, as in phalanx, philosophy, graphic, zephyr, etc., or occasionally of words from other languages.

abbreviation. Common misspelling of pH.

abbreviation. phot

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)

"If he's interested. ph is this an open meeting? who are the "advocates" and "developers" who are invited to participate? is there a link that you could have included with the article? johnnyramone"

hydrogen ion concentration  

acidity  alkalinity  neutrality  

H  Th  h  h.  mh  

CZ  Fr  GH  Gc  JJ