osmolaladj.
/ɒzˈməʊləl/, U.S. /ɑzˈmoʊləl/ Biochemistry.
Of the concentration of a solution: expressed in osmoles of solute per kilogram of solvent. Also: designating a solution that contains one osmole, or a specified number of osmoles, per kilogram of solvent, or the solute present in such a solution. Cf. osmolar adj.
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the world > life > biology > laboratory analysis > measure > [adjective] > ratio
transverso-vertical1891
osmolar1922
osmolal1935
1935 Jrnl. Clin. Investig. 14 245 (title) The change in total quantity and osmolal concentration of glucose and chloride in the serum after the ingestion of glucose by diabetic patients.
1939 A. T. Shohl Mineral Metabolism iii. 97 Osmolal content of a 70 kg. body.
1971 W. S. Beck Human Design x. 348/2 The osmotic concentration measured by freezing point depression is properly termed an osmolal concentration—milliosmols of solute per kilogram of solvent—in contrast to an osmolar concentration—milliosmols of solute per liter of solution. The two values differ only slightly in ordinary dilute solutions, however.
1984 Amer. Jrnl. Physiol. 247 C373 Survival after exposure to a 1.4-osmolal solution at 0° C was dependent on the extent of subsequent dilution.
1996 Proc. National Acad. Sci. U.S.A. 93 12273/1 Water chemical potentials are linearly proportional to solute osmolal concentrations.
This entry has been updated (OED Third Edition, September 2004; most recently modified version published online March 2022).
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adj.1935