rock salt

1. 1.

   naturally occurring crystalline sodium chloride

   Synonymshalite

   Broadersodium chloridemineral

Questions about rock salt

What does rock salt mean?

rock salt means "naturally occurring crystalline sodium chloride".

What is another word for rock salt?

Close synonyms include halite. Each sense on this page lists its own synonyms, because a word with several meanings rarely has one substitute that works for all of them.

Is rock salt a common word?

rock salt is banded "Uncommon" — turns up in careful writing rather than conversation. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.