Dictionary
sul•cus
Pronunciation: (sul'kus), [key]—
n.,
—pl. -ciPronunciation: (-sī). [key]
1. a furrow or groove.
2. Anat.a groove or fissure, esp. a fissure between two convolutions of the brain.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.