1. Mineral salt or chloride of sodium.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• rocksalt,
• eock salt,
• dock salt,
• fock salt,
• tock salt,
• 5ock salt,
• 4ock salt,
• rick salt,
• rkck salt,
• rlck salt,
• rpck salt,
• r0ck salt,
• r9ck salt,
• roxk salt,
• rovk salt,
• rofk salt,
• rodk salt,
• rocj salt,
• rocm salt,
• rocl salt

The adjective form of the word "rock salt" is "rock-salted".

The plural of the "rock salt" can be the "rock salts".

The singular of the "rock salt" can be the "rock salt".