sulcus
noun pl. sulci
- a groove or furrow
- Anat. any of the shallow grooves separating the convolutions of the brain
See sulcus in American Heritage Dictionary 4
sul·cus
noun pl. sulci sul·ci (-kī, -sī) - A deep, narrow furrow or groove, as in an organ or tissue.
- Any of the narrow fissures separating adjacent convolutions of the brain.
Origin: Latin.
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