Definitions

1. adjective

relating to or resembling a sulcus, especially a groove or furrow on the surface of the brain.

“The sulcal pattern on the patient’s MRI scan suggested a possible case of Alzheimer’s disease.”

2. noun

a sulcus, especially a groove or furrow on the surface of the brain.

“The neurosurgeon carefully navigated the sulcal region to avoid damaging any surrounding tissue.”