Definitions for "Gyrus"
A convoluted ridge between grooves; a convolution; as, the gyri of the brain; the gyri of brain coral. See Brain.
An outfolding of the cerebral cortex in brains in which the cortex is highly folded (convoluted), such as the human brain.
Measure of the brain's electrical activity (potentials) in response to stimuli (events) in the environment. The most widely used stimuli are auditory or visual.
Keywords:  circle, ring
(ring, circle).