rock salt
Americannoun
noun
Etymology
Origin of rock salt
First recorded in 1700–10
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The winter storm that sent Americans scurrying to buy snowblowers, shovels, and rock salt now has them in a deep freeze.
From Barron's ● Jan. 27, 2026
Reducing the oxygen in the tube furnace limits how many oxygen atoms are available, allowing the desired rock salt structure to form.
From Science Daily ● Dec. 4, 2025
It also warns owners to wash their paws thoroughly after walking in areas that may have been gritted with rock salt, which can be poisonous to pets.
From BBC ● Jan. 17, 2024
In my adult life as a contractor, I mostly come into contact with the powdery substance thanks to the rock salt used on the roads in central New Hampshire during snowstorms and icy conditions.
From Seattle Times ● Jul. 26, 2022
We made two more pots of graveyard dirt mixed with brick dust and some rock salt; then we poured it in a wide circle all around the cabin.
From "Root Magic" by Eden Royce
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