Take, for instance, two isotonic solutions, one of salt and another of sugar.
It may be objected that segmentation is also produced by a solution which is isotonic with sea water.
Normal saline solution is isotonic with the body cells and hence is employed as the vehicle.
All nose lotions should be alkaline, and isotonic with the blood plasma.
isotonic i·so·ton·ic (ī'sə-tŏn'ĭk)
Of equal tension.
Having the same concentration of solutes as the blood.
Of or involving muscular contraction in which the muscle remains under relatively constant tension while its length changes.