|—n , pl -ci|
|1.||a linear groove, furrow, or slight depression|
|2.||Compare fissure any of the narrow grooves on the surface of the brain that mark the cerebral convolutions|
|[C17: from Latin]|
|either of two knobs at the top of the femur, the greater on the outside and the lesser on the inside, serving for the attachment of muscles between the thigh and pelvis.|
|a rounded protuberance at the end of a bone, serving as a place of attachment for ligaments, tendons, and muscles.|
sulcus sul·cus (sŭl'kəs)
n. pl. sul·ci (-kī, -sī)
Any of the grooves on the brain surface, bounding the gyri; a fissure.
A long narrow groove or depression, as in an organ or a tissue.