: a science dealing with the deformation and flow of matter; also : the ability to flow or be deformed
First use: 1929
Greek, rheo-, flow, and -ology, science.
Rheology of the Cerebral Circulation; The Rheology of Subarachnoid Hemorrhage (titles of articles)
"These foundations, along with the additional strides made in the understanding of rheology, cerebral oxygen transport, and cerebral blood flow (CBF) augmentation, led to the formalization of
the concept of hyperdynamic therapy." (from "Hemodilution and Fluid Management in Neurosurgery")