名詞 acidity:

1. the property of being acidic
   同義詞：sourness, sour
2. the taste experience when something acidic is taken into the mouth
   同義詞：acidulousness
3. pH values below 7

1. Abnormal acidity of the blood.
   酸血癥血液中不正常的酸度
2. Some freshwater fish such as pike can withstand levels of acidity.
   一些諸如梭魚等淡水魚可以抵御相當程度的酸性。