How did Salt's Dik-Dik get its name?
Named for the sound it makes when alarmed.
Salts get their name because it comes from the latin name saltier. The formulas for atomic salts relate to their names because their names are a direct reflection of what they're made from. An atomic salt is named after its components, and those components can be deduced by looking at the name of the salt.
The name of a salt is in two parts: The first part of the name comes from the metal in the metal oxide, hydroxide or carbonate. The second part of the name comes from the acid used to make it. The names of salts made from hydrochloric acid end in chloride, while the names of salts made from sulphuric acid end in sulphate.
Just breaking down the words, here's a reasonable guess. Salinity is having salts. Gradient is different amounts. A map would show you where. So I guess you are looking at where the greatest amount of salts are concentrated and where there are less or even which salts are where, if there is more than one kind available. Remember sodium chloride (table salt) is not the only salt; there is magnesium salts such as Epsom salts…