Increased concentration of a solution expressed as osmoles of solute per kilogram of serum water. ... (05 Mar 2000) ... 
(hi″pәr-oz″mo-lal´ĭ-te) an increase in the osmolality of the body fluids.
Type: Term Pronunciation: hī′pĕr-oz′mō-lal′i-tē Definitions: 1. Increased osmotic concentration of a solution expressed as osmoles of solute per kilogram of serum water.
hyperosmolality The abnormal increase in the osmolality of a solution, especially a body fluid.