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

 

hydrochloric acid

 noun
noun
BrE BrE//ˌhaɪdrəˌklɒrɪk ˈæsɪd//
 
; NAmE NAmE//ˌhaɪdrəˌklɔːrɪk ˈæsɪd//
 
[uncountable](symbol HCl)(chemistry)
 
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an acid containing hydrogen and chlorine
See the Oxford Advanced American Dictionary entry: hydrochloric acid