Dis‐solv″ent, n. 1. That which has the power of dissolving or melting other substances, esp. by mixture with them; a menstruum; a solvent.
Melted in the crucible dissolvents. A. Smith.
The secret treaty of December acted as an immediate dissolvent to the truce. Mothley.
2. (Med.) A remedy supposed capable of dissolving concretions in the body, such as calculi, tubercles, etc.