Resolvent

Webster's Dictionary of the English Language

·adj Having power to resolve; causing solution; solvent.

II. Resolvent ·noun That which has the power of resolving, or causing solution; a solvent.

III. Resolvent ·noun An equation upon whose solution the solution of a given pproblem depends.

IV. Resolvent ·noun That which has power to disperse inflammatory or other tumors; a discutient; anything which aids the absorption of effused products.