| phenyl. |
| the symbol for the logarithm of the reciprocal of hydrogen ion concentration in gram atoms per liter, used to express the acidity or alkalinity of a solution on a scale of 0 to 14, where less than 7 represents acidity, 7 neutrality, and more than 7 alkalinity. |
| phot; phots. |
| Public Health. |
| postage and handling. |
[fot, foht] 
| a unit of illumination, equal to 1 lumen per square centimeter. Abbreviation: ph |
| pH (pē'āch') n. A measure of the acidity or alkalinity of a solution, numerically equal to 7 for neutral solutions, increasing with increasing alkalinity and decreasing with increasing acidity. The pH scale commonly in use ranges from 0 to 14. [p(otential of) h(ydrogen).] |
| Ph abbr. Bible Philippians |
| PH abbr.
|
| Phi·lip·pi·ans (fĭ-lĭp'ē-ənz) pl.n. (used with a sing. verb) Abbr. Phil. or Phl or Ph See Table at Bible. |
pH (pē'āch')
n.
A measure of the acidity or alkalinity of a solution, numerically equal to 7 for neutral solutions, increasing with increasing alkalinity and decreasing with increasing acidity. The pH scale commonly in use ranges from 0 to 14.
PH or P.H.
abbr.
public health
| pH (pē'āch') Pronunciation Key
A numerical measure of the acidity or alkalinity of a solution, usually measured on a scale of 0 to 14. Neutral solutions (such as pure water) have a pH of 7, acidic solutions have a pH lower than 7, and alkaline solutions have a pH higher than 7. The pH of lemon juice is 2.4; that of household ammonia is 11.5. The normal pH for human blood is 7.4. ◇ The letters pH stand for potential of hydrogen, since pH is effectively a measure of the concentration of hydrogen ions (that is, protons) in a substance. The pH scale was devised in 1923 by Danish biochemist Søren Peter Lauritz Sørensen (1868-1969). |
ph networking
The country code for the Philippines.
(1999-01-27)
| pH potential of hydrogen (0 to 14 scaleâ0, very acidic; 7, neutral; 14, very alkaline) |
| Ph Philippians |
PH
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