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Definition of Hypertonic
1. Adjective. (of living tissue) in a state of abnormally high tension. "Hypertonic muscle tissue"
2. Adjective. (of a solution) having a higher osmotic pressure than a comparison solution.
Definition of Hypertonic
1. Adjective. (context: of a solution) having a greater osmotic pressure than another ¹
2. Adjective. (anatomy) having a very high muscular tension; spastic ¹
¹ Source: wiktionary.com
Definition of Hypertonic
1. [adj]
Medical Definition of Hypertonic
1. Of a fluid, sufficiently concentrated to cause osmotic shrinkage of cells immersed in it. Note that a mildly hyperosmotic solution is not necessarily hypertonic for viable cells, that are capable of regulating their volumes by active transport. See: hypotonic, isotonic. This entry appears with permission from the Dictionary of Cell and Molecular Biology (11 Mar 2008)