hypotonic

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Related to Hyptonicity: hypertonicity

hypotonic

 [hi″po-ton´ik]
1. having an abnormally reduced tonicity or tension.
2. having an osmotic pressure lower than that of the solution with which it is compared.

hy·po·ton·ic

(hī'pō-ton'ik),
1. Having a lesser degree of tension.
2. Having a lesser osmotic pressure than a reference solution, which is ordinarily assumed to be blood plasma or interstitial fluid; more specifically, refers to a fluid in which cells would swell.
Synonym(s): hypoisotonic

hypotonic

/hy·po·ton·ic/ (-ton´ik)
1. denoting decreased tone or tension.
2. denoting a solution having less osmotic pressure than one with which it is compared.

hypotonic

(hī′pō-tŏn′ĭk)
adj.
1. Having less than normal tone or tension, as of muscles or arteries.
2. Chemistry Having the lower osmotic pressure of two solutions.

hy′po·to·nic′i·ty (-tə-nĭs′ĭ-tē) n.

hypotonic

[hī′pōton′ik]
Etymology: Gk, hypo, under, tonos, stretching
1 adj, pertaining to a lower or lessened tone or tension in any body structure, as in paralysis.
2 n, a solution having a lower concentration of solute than another solution, hence exerting less osmotic pressure than that solution.
3 adj, pertaining to a solution that causes cells to swell. Compare hypertonic, isotonic.
enlarge picture
Hypotonic solution

hy·po·ton·ic

(hī'pō-ton'ik)
1. Having a lesser degree of tension.
2. Having a lesser osmotic pressure than a reference solution, ordinarily plasma or interstitial fluid.
Hypotonicclick for a larger image
Fig. 193 Hypotonic . The movement of water from a hypotonic fluid to a hypertonic one.

hypotonic

(of a fluid) having a less-negative WATER POTENTIAL or a lower solute concentration than another fluid, which is hypertonic to it.

See also PLASMOLYSIS.

hy·po·ton·ic

(hī'pō-ton'ik)
1. Having a lesser degree of tension.
2. Having a lesser osmotic pressure than a reference solution, ordinarily plasma or interstitial fluid.

hypotonic

1. having an abnormally reduced tonicity or tension.
2. having an osmotic pressure lower than that of the solution with which it is compared.

hypotonic dehydration
occurs when there is secretory loss of sodium from the intestinal epithelium, e.g. salmonellosis, in osmolar excess of the concurrent fluid loss. See also dehydration.