Definition

1. Noun:
   • The quality or state of being acidic; the level of acid in a substance. This refers to the chemical property of having a high concentration of hydrogen ions, often measured on the pH scale.
   • A sour taste. This refers to the sharp, tart, or tangy taste sensation produced by acids in food or drink.

Examples of Usage

• Noun:
  • The acidity of the soil affects which plants can grow. (The chemical property of the soil being acidic influences plant life.)
  • The lemon's acidity made my mouth pucker. (The sour taste of the lemon caused a strong reaction.)
  • Scientists measured the acidity of the lake water. (Researchers quantified the level of acid in the water.)

Advanced Usage

• "To balance the acidity": To adjust or counteract a sour taste or high acid level.
  • A pinch of sugar can balance the acidity of the tomato sauce.
• "High/low acidity": Describing the degree or level of acid present.
  • This coffee is known for its bright, high acidity.

Variants and Related Words

• Acid (n/adj): The chemical compound that causes acidity; having a sour taste or a pH below 7.
  • Vinegar contains acetic acid.
• Acidic (adj): Having the properties of an acid; sour.
  • The fruit had an acidic flavor.
• Acidify (v): To make or become acid.
  • Pollution can acidify rainwater.

Synonyms

• Sourness: The taste experience of acidity.
• Tartness: A sharp, acidic taste, often pleasant.
• Acridity (primarily for sharp smells/tastes, can overlap).

Antonyms

• Alkalinity: The state of being basic, having a pH above 7.
• Sweetness: A taste opposite to sourness.

Noun

1. pH values below 7
2. the taste experience when something acidic is taken into the mouth
3. the property of being acidic