Hyperosmotic

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Effect of diferent solutions on blood cells
Effect of diferent solutions on blood cells

"...a term describing organisms with body fluids with a lower concentration of water and higher solute concentration than the external environment." Taken from Ecology by Manuel C. Molles Jr.

This means that if a cell is Hyperosmotic, it absorbs water from the surroundings to dilute the higher solute concentration, thus making the cell isotonic to the environment.