Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun 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.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun metrology Symbol for the
picohenry , anSI unit ofelectrical inductance equal to 10−12henrys . - abbreviation chemistry The negative of the
logarithm to the base 10 of the concentration ofhydrogen ions , measured inmoles per liter; a measure of acidity or alkalinity of a substance, which takes numerical values from 0 (maximum acidity) through 7 (neutral) to 14 (maximum alkalinity).
Etymologies
from The American Heritage® Dictionary of the English Language, 4th Edition
from Wiktionary, Creative Commons Attribution/Share-Alike License
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Examples
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The term pH is a convenient way to express the concentration of hydrogen ions (H+) in an aqueous solution.
PH 2006
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And if the pH is above 3.3, it moves to Medium Sweet, and if the pH is as low as 2.9 or lower, the wine moves to Dry.
Rants 2009
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And if the pH is above 3.3, it moves to Medium Sweet, and if the pH is as low as 2.9 or lower, the wine moves to Dry.
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And if the pH is above 3.3, it moves to Medium Sweet, and if the pH is as low as 2.9 or lower, the wine moves to Dry.
LENNDEVOURS: 2008
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But if the pH is 3.3 or 3.4, it moves up to Medium Dry.
Rants 2009
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And if the pH is 2.8 or below (highly unlikely), the wine could be called Dry.
Rants 2009
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In regular soap, fats or oils are boiled with an alkali agent, such as lye or wood-ash, and the resulting mess which comes from this combination of heat and pH is a solid substance with a curious molecular makeup.
Archive 2009-06-01 Heather McDougal 2009
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If your soil pH is adequate (7.0 to 7.5) Alfalfa can work as it will root quite deeply given adequate soil (read deep) prep and proper pH.
FoodPlot Choices 2009
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In regular soap, fats or oils are boiled with an alkali agent, such as lye or wood-ash, and the resulting mess which comes from this combination of heat and pH is a solid substance with a curious molecular makeup.
A Bit of Soap Heather McDougal 2009
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Ratio above 4.1, but using the pH adjustment, a sweeter wine with a ratio of, say, 4.4 might actually be moved to Medium Sweet if the pH is significantly lower.
Rants 2009
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