The term that describes a substance that can be dissolved is solute.

Here's why:

* Solute: The substance that dissolves in a solvent to form a solution.

* Solvent: The substance that dissolves the solute.

* Solution: The homogeneous mixture formed when a solute dissolves in a solvent.

For example, when you add sugar to water, the sugar is the solute and the water is the solvent. The resulting mixture is a solution.