Acidity
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Acidity
Acidity (/əˈsɪdɪti/) is a term used in medicine to describe the level of acid in substances such as water, soil, or the human body. It is often measured on a scale known as the pH scale, where lower numbers indicate higher acidity.
Etymology
The term "acidity" comes from the Latin word acidus, meaning "sour" or "sharp". It was first used in English in the 17th century.
Related Terms
- pH: A measure of the acidity or alkalinity of a solution.
- Acid: A substance that donates protons or hydrogen ions and/or accepts electrons.
- Alkalinity: The capacity of water to resist changes in pH that would make the water more acidic.
- Gastric acid: A digestive fluid formed in the stomach. It is one of the main secretions of the stomach, produced by the stomach lining.
- Heartburn: A symptom of acid reflux, which occurs when stomach acid backs up into the esophagus.
- Acidosis: A condition characterized by excessive acid in the body fluids.
- Acid-base balance: The balance between acid and base concentrations in the body fluids.
See Also
References
External links
- Medical encyclopedia article on Acidity
- Wikipedia's article - Acidity
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