What does "brine" mean?

Additional senses

1. 2.Tears; -- so called from their saltness. What a deal of brine Hath washed thy sallow cheecks for Rosaline! Shak. Brine fly (Zoöl.), a fly of the genus Ephydra, the larvæ of which live in artificial brines and in salt lakes. -- Brine gauge, an instrument for measuring the saltness of a liquid. -- Brine pan, a pit or pan of salt water, where salt is formed by cristallization. -- Brine pit, a salt spring or well, from which water is taken to be boiled or evaporated for making salt. -- Brine pump (Marine Engin.), a pump for changing the water in the boilers, so as to clear them of the brine which collects at the bottom. -- Brine shrimp, Brine worm (Zoöl.), a phyllopod crustacean of the genus Artemia, inhabiting the strong brines of salt works and natural salt lakes. See Artemia. -- Brine spring, a spring of salt water. -- Leach brine (Saltmaking), brine which drops from granulated salt in drying, and is preserved to be boiled again.
2. 3.To steep or saturate in brine.
3. 4.To sprinkle with salt or brine; as, to brine hay.