thixotropy

[thik-so-truh-pee]
noun Chemistry.
the property exhibited by certain gels of becoming liquid when stirred or shaken.

Origin:
1925–30; < Greek thíx(is) touch + -o- + -tropy

thixotropic [thik-suh-trop-ik, -troh-pik] , adjective
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World English Dictionary
thixotropic (ˌθɪksəˈtrɒpɪk)
 
adj
(of fluids and gels) having a viscosity that decreases when a stress is applied, as when stirred: thixotropic paints
 
[C20: from Greek thixis the act of touching + -tropic]
 
thixotropy
 
n
 
thixotrope
 
n

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American Heritage
Medical Dictionary

thixotropy thix·ot·ro·py (thĭk-sŏt'rə-pē)
n.
The property exhibited by certain gels of becoming fluid when stirred or shaken and returning to the semisolid state upon standing.


thix'o·trop'ic (thĭk'sə-trŏp'ĭk) adj.
The American Heritage® Stedman's Medical Dictionary
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Encyclopedia Britannica
Encyclopedia

thixotropy

reversible behaviour of certain gels that liquefy when they are shaken, stirred, or otherwise disturbed and reset after being allowed to stand. Thixotropy occurs in paint, such as lithopone in oil, which flows freely when stirred and reverts to a gel-like state on standing. Quicksand, a mixture of sand and water, is rendered thixotropic by the presence of certain clays. Drilling mud, made thixotropic by the inclusion of bentonite, forms a cake on the wall of the drill hole to keep drilling fluid in the hole and to prevent outside water from entering.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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Example sentences
Thixotropy is also a property of some fluids in plastic flow.
Thixotropy may be exhibited by some, but not necessarily all, pre-bagged grouts.
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