oscmolarity is defined as
Medical Definition of OSMOLARITY. : the concentration of an osmotic solution especially when measured in osmols or milliosmols per liter of solution.â osÂ·moÂ·lar \aez-Ã¤z-ËmÅ, lÉr-\ aes. Ã¤s adjectiveedical Definition of OSMOLARITY. : the concentration of an osmotic solution especially when measured in osmols or milliosmols per liter of solution.