swimming pool acid
Hydrochloric acidHydrochloric acid
Meaning
1 senses(uncountable)Hydrochloric acid
Origin
From its use to reduce the alkalinity of water in swimming pools.From its use to reduce the alkalinity of water in swimming pools.
Wiktionary, CC BY-SA 4.0 · source
Lessons for this word
1 lessons- A1Countable and uncountable nouns — Because it can be uncountable
See also
neighbours in the dictionaryDictionary text adapted from Wiktionary (Wiktionary contributors, CC BY-SA 4.0) and Open English WordNet / Princeton WordNet (CC BY 4.0, WordNet License); shared under CC BY-SA 4.0. Example sentences and recordings are credited where they appear.