isotonic sodium chloride solution

noun

, Pharmacology.

1. an aqueous solution of 0.9 percent sodium chloride, isotonic with the blood and tissue fluid, used in medicine chiefly for bathing tissue and, in sterile form, as a solvent for drugs that are to be administered parenterally to replace body fluids.

Word History and Origins

Origin of isotonic sodium chloride solution¹

First recorded in 1965–70