rock salt

noun

1. common salt occurring in extensive, irregular beds in rocklike masses.

rock salt

noun

1. another name for halite

Word History and Origins

Origin of rock salt¹

First recorded in 1700–10

Example Sentences

Also popular are the Peking duck, baked free-range chicken with rock salt, diced beef tenderloin with black pepper and the pan-fried eggplant.

From Seattle Times

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

Supplies of rock salt and snow shovels were flying off shelves on Tuesday at Rocky's Ace Hardware in Worcester, Massachusetts, west of Boston, said the manager, Joshua Rivera.

From Reuters

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

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 Literature