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

 

phosphoric acid

 noun
noun
BrE BrE//fɒsˌfɒrɪk ˈæsɪd//
 
; NAmE NAmE//fɑːsˌfɔːrɪk ˈæsɪd//
 
[uncountable]
 
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an acid used in fertilizers and in the production of detergents and food
See the Oxford Advanced American Dictionary entry: phosphoric acid