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Definition of caustic soda noun from the Oxford Advanced Learner's Dictionary

caustic soda

noun

/ˌkɔːstɪk ˈsəʊdə/

/ˌkɔːstɪk ˈsəʊdə/

[uncountable]

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a chemical used in making paper and soap

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See caustic soda in the Oxford Advanced American Dictionary

Check pronunciation: caustic soda

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noun

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B2

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