isotonic sodium chloride solution

American  

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.

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Etymology

Origin of isotonic sodium chloride solution

First recorded in 1965–70