noun
naturally occurring crystalline sodium chloride
• Syn: ↑halite
• Hypernyms: ↑sodium chloride, ↑common salt, ↑mineral
• Substance Meronyms: ↑sodium, ↑Na, ↑atomic number 11
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rock salt,
common salt as it occurs in the earth in large crystals; halite. Rock salt is often used to melt ice on roads and sidewalks.
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n. common salt occurring naturally as a mineral; halite
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noun [noncount]
: salt that is in the form of large pieces or crystals
I put some rock salt on the sidewalk to melt the ice.
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a kind of salt that comes from the ground
Useful english dictionary. 2012.