thixotropy
noun
thix·ot·ro·py thik-ˈsä-trə-pē 
: the property of various gels of becoming fluid when disturbed (as by shaking)
… says that blood liquefaction can be explained in terms of a phenomenon called thixotropy. Certain substances, including some types of mayonnaise, are normally thick gels, but can be liquefied instantly by shaking or stirring. 
The New York Times
The New York Times thixotropic
ˌthik-sə-ˈtrō-pik -ˈträ-
adjective -ˈträ- thixotropic clay
A thixotropic gel is one capable of liquefying when agitated and of resolidifying when allowed to stand. Joe Nickell
Joe Nickell 
Word History
Etymology
borrowed from German Tixotropie, from Greek thíxis "act of touching" (from thig-, base of thingánein "to touch, handle" + -sis -sis) + German -o- -o- + -tropie -tropy — more at thigmotropism
Note: The term was introduced by the Hungarian biologist Tibor Péterfi (1883-1953) in Archiv für Entwicklungsmechanik der Organismen, No. 112 (1927), p. 689.
First Known Use
1927, in the meaning defined above
Medical Definition
thixotropy
noun
thix·ot·ro·py thik-ˈsä-trə-pē
plural thixotropies
: the property of various gels of becoming fluid when disturbed (as by shaking)