
Compare with osmotic pressure. Describes a solution which has lower osmotic pressure than some other solution (usually, lower osmotic pressure than cell or body fluids). Washing your contact lenses with distilled water rather than saline is painful because distilled water is hypotonic; it causes water to move into cells, and they swell and burst.
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http://antoine.frostburg.edu/chem/senese/101/glossary/h.shtml

a comparison between two solutions, indicating that one has a lower osmotic pressure, or is less salty than the other.
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http://www.encyclo.co.uk/local/20169

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: hypoisotonic. ... (05 Mar 2000) ...
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http://www.encyclo.co.uk/local/20973

(hi-po-ton´ik) having abnormally reduced tonicity or tension. having an osmotic pressure lower than that of the solution with which it is compared.
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http://www.encyclo.co.uk/local/21001

Of a fluid, having a concentration that will cause osmotic shrinkage of cells immersed in it. Not necessarily hypo-osmotic.
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http://www.encyclo.co.uk/visitor-contributions.php

Type: Term Pronunciation: hī′pō-ton′ik Definitions: 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. Synonyms: hypoisotonic
Found on
http://www.medilexicon.com/medicaldictionary.php?t=43114

in two solation which have lawer solute con centration is called hypotonic.
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http://www.vidyagyaan.com/general-knowledge/science/biology-terms-and-defin

[
adj] - (of living tissue) lacking normal tone or tension 2. [adj] - of a solution
Found on
http://www.webdictionary.co.uk/definition.php?query=hypotonic

hypotonic 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, it refers to a fluid in which cells would swell.
Found on
http://www.wordinfo.info/words/index/info/view_unit/1020/12
adjective (of a solution) having a lower osmotic pressure than a comparison solution
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https://www.encyclo.co.uk/local/20974

A solution having a low concentration of solute.
Found on
https://www.encyclo.co.uk/local/21571

A fluid that contains a ratio of electrolytes to water that is less than extracelluar fluid. A fluid that contains a concentration of electrolytes less than extracellular fluid.
Found on
https://www.encyclo.co.uk/local/22445

Hypotonic solutions have lower osmolalities than extracellular fluid/plasma.
Found on
https://www.encyclo.co.uk/local/22445

(of tissue) having less than the normal tone. · noting a solution of lower osmotic pressure than another solution with which it is compared (opposed to hypertonic). Cf. isotonic (def. 1).
Found on
https://www.infoplease.com/dictionary/hypotonic
No exact match found.