What is the compound called when it is in solution? When a compound precipitates out of solution, for example Calcium Carbonate from a water solution, it is called the precipitate.

What is the same compound called before it precipitates out - once it has dissolved? I found the word "electrolyte", but I'm unsure this applies to all solutions - only ionic, and I'm not sure a CaCO3 solution is ionic.
I believe the term you are looking for is solute; a solute is a substance dissolved in another substance, known as a solvent.