Definition. adjective. (1) (used of solutions) Of or having the same or equal osmotic pressure. (2) A condition in which the total number of solutes (i.e. permeable and impermeable) in a solution is the same or equal to the total solutes in another solution.

What is Isosmotic vs isotonic?

Isotonic refers to a solution having the same solute concentration as in a cell or a body fluid. Isosmotic refers to the situation of two solutions having the same osmotic pressure. Isosmotic solutions cause cells to absorb water from surrounding or to lose water from cells.

What does iso osmolar mean?

i·sos·mot·ic. (ī'sos-mot'ik), Having the same total osmotic pressure or osmolality as another fluid (ordinarily intracellular fluid); such a fluid is not isotonic if it includes solutes that freely permeate cell membranes.