n. | 1. | The quality of being sour; sourness; tartness; sharpness to the taste; |
Noun | 1. | acidity - the property of being acidic |
2. | acidity - the taste experience when something acidic is taken into the mouth Synonyms: acidulousness | |
3. | acidity - pH values below 7 Antonyms: alkalinity - pH values above 7 |