define solvent
Solventâs meaning changes pretty drastically depending on its part of speech. As a noun, solvent is either a certain kind of chemical or an idea that solves a problem. As an adjective, solvent describes someone who's got cash on hand. A solvent dissolves other chemicals, which is why it's also easy to remember: solvent is a chemical used to dissolve other chemicals. The adjective solvent, on the other hand, comes from a French verb that means loosen..