Definition of citric acid noun from the Oxford Advanced Learner's Dictionary

 

citric acid

 noun
noun
BrE BrE//ˌsɪtrɪk ˈæsɪd//
 
; NAmE NAmE//ˌsɪtrɪk ˈæsɪd//
 
[uncountable]
 
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a weak acid found in the juice of lemons and other sour fruits
See the Oxford Advanced American Dictionary entry: citric acid