define hypertonicity
Relevant terms include isotonicity, hypertonicity, and hypotonicity. In general, hypertonicity is a condition characterized by the presence of a greater degree of tone or tension. In cellular level, hypertonicity is a property of a solution wherein the amount of solutes is higher than that of another solution. A solution is also hypotonic when a solution (or a fluid) has greater osmotic pressure than the other solution (or fluid).