osmotic

Definition / meaning of osmotic

Having to do with osmosis (the passage of a liquid through a membrane from a less concentrated solution to a more concentrated one). This causes the more concentrated solution to become diluted, and makes the concentrations in both solutions more equal. Osmotic also refers to a type of laxative that increases the amount of water in the large intestine, which softens the stool to help it pass more easily.

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Source(s):

The Web site of the National Cancer Institute (http://www.cancer.gov/)

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