Hyperosmosis refers to a condition where there is an increased concentration of solutes in a solution, leading to a higher osmotic pressure. This can result in the movement of water out of cells or tissues, causing them to shrink or become dehydrated. It is often associated with conditions like dehydration or high solute levels in the blood. Understanding hyperosmosis is important in medical contexts, particularly in the treatment of fluid and electrolyte imbalances.