Having the power to resolve or dissolve; causing solution; solvent.n. That which has the power of causing solution.n. In medicine, a remedy which causes the resolution of a swelling; a discutient.n. In algebra, an equation formed to aid the resolution of a given equation having for its roots known functions of the roots of the given equation. Thus, if x, x′ , x″, x‴ are the roots of a biquadratic, one method of solution begins by solving the cubic whose roots are of the form xx′ + x″ x‴.