rock salt


Definition of rock salt

: common salt occurring in solid form as a mineral also : salt artificially prepared in large crystals or masses

Examples of rock salt in a Sentence

I put some rock salt on the sidewalk to melt the ice.
Recent Examples on the Web Overall, ice cream makers that used a combination of ice and rock salt to freeze were not as easy to use as ones that use a frozen canister or a compressor, and noise levels varied greatly. Brigitt Earley, Good Housekeeping, 16 June 2022 Fill your cooler with ice. Sprinkle the ice with rock salt or ice cream salt. Terry Baddoo, USA TODAY, 1 June 2022 The rock salt lowers the temperature of the ice-and-water bath to 27 degrees, which is the temperature at which cream can start to freeze. Alex Heard, Outside Online, 4 July 2020 These are created by injecting fresh water into subterranean rock salt formations, dissolving and washing away the salt until the caverns are hollowed out. Samanth Subramanian, Quartz, 31 Mar. 2022 Each year, the highway department dumped as much as 2,200 tons of rock salt onto 110 miles of road – nearly 2 pounds of salt for every square yard of road. Kyle Bagenstose, USA TODAY, 27 Feb. 2022 Apply some de-icer or rock salt to your sidewalk and steps. Frank Witsil, Detroit Free Press, 31 Jan. 2022 The Maryland Department of the Environment has been working with the State Highway Administration to find alternative methods to clear roads for winter travel that are not as reliant on rock salt. Lilly Price,, 28 Jan. 2022 Sodium chloride — rock salt — is the cheapest and most common ice-melting chemical. Beth Botts,, 4 Dec. 2021 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'rock salt.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of rock salt

1693, in the meaning defined above

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Time Traveler for rock salt

Time Traveler

The first known use of rock salt was in 1693

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Dictionary Entries Near rock salt

rock salmon

rock salt

rock samphire

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Statistics for rock salt

Last Updated

25 Jul 2022

Cite this Entry

“Rock salt.” Dictionary, Merriam-Webster, Accessed 15 Aug. 2022.

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More Definitions for rock salt

rock salt


Kids Definition of rock salt

: common salt in large crystals

More from Merriam-Webster on rock salt

Nglish: Translation of rock salt for Spanish Speakers Encyclopedia article about rock salt


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