also pH value [ˈpiː ˈeitʃ, ˈpiː ˈeitʃ væljuː]
(chemistry) a number on a scale from 0 to 14 that indicates the level of acid or alkali in a substance: Milk has a pH of around 6.5 to 6.7, which makes it slightly acidic.
az: suyun qida dəyəri
ru: водородный показатель, значение PH