hydroalcoholic

As a noun alcohol

is any of a class of organic compounds (such as ethanol) containing a hydroxyl functional group (-OH).

As an adjective hydroalcoholic is

describing a solution in which the solvent is a mixture of water and alcohol.

As a noun solution

is a homogeneous mixture, which may be liquid, gas or solid, formed by dissolving one or more substances.

As an adjective hydroalcoholic is

describing a solution in which the solvent is a mixture of water and alcohol.

As a noun water

is a chemical, found at room temperature and pressure as a clear liquid, having the formula H₂O, required by all forms of life on Earth.

As a verb water

is to pour water into the soil surrounding (plants).

As an adjective hydroalcoholic is

describing a solution in which the solvent is a mixture of water and alcohol.

As adjectives the difference between solvent and hydroalcoholic

is that solvent is able to pay all debts as they become due, and having no more liabilities than assets while hydroalcoholic is describing a solution in which the solvent is a mixture of water and alcohol.

As a noun solvent

is a liquid that dissolves a solid, liquid, or gaseous solute, resulting in a solution.