2. A condition in which the total amount of solutes (both permeable and impermeable) in a solution is greater than that of another solution.
For instance: In kidneys, the tubular fluid is:
- iso-osmotic (to plasma) when it is at the beginning of the loop of henle
- hyperosmotic (to plasma) when it is at the tip of the loop
- hypo-osmotic (to plasma) when it leaves the loop
Word origin: G. hypo: under, below + osmotic: relating to osmosis.
Related forms: hyperosmotically (adverb), hyperosmosis (noun).
Related phrases: hyperosmotic solution.