noun / adjective
acid
AS-id/ˈæsɪd/
A substance that reacts with bases and often tastes sour.
The acid in lemon juice turns the dipped blue litmus strip red.
Etymology
Latin acidus described a sour or sharp taste. The English noun initially covered vinegar-like sour substances, then became a more precise chemical term extending even to compounds without that taste.
In context
these are acids specifically alpha hydroxy acid and beta hydroxy acid alpha hydroxy acid is water soluble
More examples
- Lemon juice gives the sauce an acid taste.
- His acid comments turn the friendly discussion bitter.
- The laboratory keeps different acids in separate labeled containers.
Forms
acid · acids
acidic adjective — Having the chemical properties of an acid.
acidity noun — The extent of a substance's acidic properties.