1. A solvent, notably water, that dissolves lead.

In the public supply of water this is an undesirable component because in older structures, plumbosolvent water can dissolve lead pipes with the result that there is increased levels of lead from the tap which is then consumed when people drink it.

Research has shown that lead affects multiple systems in the human body; including, the central and peripheral nervous stems.

2. A process in which some lead will be dissolved in the water that is conveyed through lead pipes.