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rheology

American  
[ree-ol-uh-jee] / riˈɒl ə dʒi /

noun

  1. the study of the deformation and flow of matter.


rheology British  
/ rɪˈɒlədʒɪ, ˌriːəˈlɒdʒɪkəl /

noun

  1. the branch of physics concerned with the flow and change of shape of matter

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Etymology

Origin of rheology

First recorded in 1925–30; rheo- + -logy

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

During an extensional rheology test -- which measures how much force is needed to make a liquid flow -- the researchers observed something unusual.

From Science Daily • Mar. 30, 2026

Kolzenburg, S., Giordano, D., Cimarelli, C. & Dingwell, D. B. In situ thermal characterization of cooling/crystallizing lavas during rheology measurements and implications for lava flow emplacement.

From Nature • Dec. 12, 2017

Le Losq, C. & Neuville, D. R. Effect of the Na/K mixing on the structure and the rheology of tectosilicate silica-rich melts.

From Nature • Dec. 12, 2017

I decided to reformulate it to illustrate some problems at the heart of rheology, the study of the deformations and flows of matter.

From Slate • Nov. 9, 2017

My study on the rheology of cats won the 2017 Ig Nobel prize in physics.

From Slate • Nov. 9, 2017

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