Anat. a convoluted ridge or fold between fissures, or sulci, of the cortex of the brain
Origin of gyrusModern Latin from L: see gyre
A rounded ridge, as on the surfaces of the cerebral hemispheres.
Origin of gyrusLatin gérus circle ; see gyre .
(plural gyri or gyruses)
- (anatomy) A ridge or fold on the cerebral cortex.
From Latin gȳrus (“circle”), from Ancient Greek γῦρος (guros)