Definition of: saline

(sā′līn) adjective
Constituting, consisting of, or characteristic of salt; containing salt; salty.
—noun
1. A metallic salt, especially a salt of one of the alkalis or of magnesium.
2. A salt solution used in the investigation of biological and physiological processes, and also in medicine, as for an injection.
3. A natural deposit of common or other soluble salt; salina. [<F salin <LL (assumed) salinus <L sal, salis salt]