isotonic sodium chloride solution: Meaning and Definition of

i'soton'ic so'dium chlo'ride solu"tion

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. Also calledCf. Ringer's solution.