Definition of rock salt in English:

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rock salt

Pronunciation:

noun

[mass noun]
Common salt occurring naturally as a mineral; halite.
Example sentences
  • Running for several miles east and west, at a height ranging from three hundred to four hundred feet, these desolate hills are composed of rock salt, capped with a bed of gypsum and chalk.
  • Ice cream must have arrived there from Spain, because the old-fashioned ice cream was made in a grinder called garapinera, with rock salt and ice packed round a central container of milk.
  • Everyone stays inside, the neighbors seen only in cars backing slowly down driveways sprinkled with rock salt, breath hovering on windows.
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