Hypoosmotic
From Wikipedia, the free encyclopedia
"... a term describing organisms with body fluids with a higher concentration of water and lower solute concentration than the external environment." Taken from Ecology by Manuel C. Molles Jr.
Thus if a cell is hypo-osmotic, water will flow out and solutes will flow in,so that the relative concentrations are equal in and out of the cell; there is an isotopic environment.
Actually, solutes won't flow in....only water molecules move during true osmosis

