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Definition of rock salt noun from the Oxford Advanced Learner's Dictionary

rock salt

noun

/ˈrɒk sɔːlt/,

/ˈrɒk sɒlt/

/ˈrɑːk sɔːlt/

[uncountable]

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a kind of salt that comes from the ground compare sea salt

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See rock salt in the Oxford Advanced American Dictionary

Check pronunciation: rock salt

Nearby words

noun

From the Word list

B2

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