1. Having an osmolality greater than another fluid, ordinarily assumed to be plasma or extracellular fluid. 2. Relating to increased osmosis.
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hy·per·os·mot·ic .hī-pə-.räz-'mät-ik adj HYPERTONIC (2) <if a laxative is needed, a \hyperosmotic preparation...is better than a bowel stimulant (S. E. Goldfinger)>
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hy·per·os·mot·ic (hi″pər-oz-motґik) 1. producing or caused by abnormally rapid osmosis. 2. containing a higher concentration of osmotically active components than a standard solution.Medical dictionary. 2011.