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rock salt
noun
: 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
According to Parker, the majority of Arkansas highways and interstates are in good condition as Department of Transportation crews have transitioned from plowing to spot controlling any remaining problem areas with rock salt.
—Parker Mancino, arkansasonline.com, 12 Jan. 2025
Unfortunately, rock salt and other de-icers can take time to work, especially on a cold, cloudy day.
—Brandee Gruener, Southern Living, 10 Jan. 2025
This is a timely process, especially when dealing with rock salt.
—Markis Hill, Kansas City Star, 3 Jan. 2025
Supplies needed 2 cups of ice cubes 1 cup of rock salt
Tongs
Step 1: Add ice cubes and rock salt
The rock salt to ice ratio varies.
—Julia Mitchem, Architectural Digest, 30 Dec. 2024
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Word History
First Known Use
1693, in the meaning defined above
Dictionary Entries Near rock salt
Cite this Entry
“Rock salt.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/rock%20salt. Accessed 18 Jan. 2025.
Kids Definition
rock salt
noun
: common salt in large crystals or masses
More from Merriam-Webster on rock salt
Nglish: Translation of rock salt for Spanish Speakers
Britannica.com: Encyclopedia article about rock salt
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