noun.
A substance which can (be) dissolve(d) into a liquid
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
noun.
a liquid substance capable of dissolving other substances
Word Usage
"Conversely, the kind of bipartisan cooperation voters are supposedly clamoring for today seemed to them, again correctly as the evidence shows, a deterrent to voter turnout and a dissolvent of internal party unity."