Definition of salt-box:
(n) :
A common substance, chemically consisting mainly of sodium chloride (NaCl), used extensively as a food ingredient, seasoning, condiment, and preservative.
(n) :
(chemistry) One of the compounds formed from the reaction of an acid with a base, where a positive ion replaces a hydrogen of the acid.
(n) :
(uncommon, countable) A salt marsh, a saline marsh at the shore of a sea.
(n) :
(slang, countable) A sailor (also old salt).
(n) :
(cryptography) A sequence of random data added to plain text data (such as passwords or messages) prior to encryption or hashing, in order to make brute force decryption more difficult.
(n) :
A person who seeks employment at a company in order to (once employed by it) help unionize it.