What does "sulcus" mean?

A furrow or groove in an organ or a tissue, especially that marking the convolutions of the surface of the brain.

What is a synonym for "sulcus"?

Common synonyms include: chase, chink, corrugation, crack, cranny, cut.

/ˈsʌl.kəs/ noun

noun ·Rare ·Advanced level

Noun

1
A furrow or groove in an organ or a tissue, especially that marking the convolutions of the surface of the brain.
"The sulci and gyri are the grooves and ridges, respectively."
2
(anatomy) any of the narrow grooves in an organ or tissue especially those that mark the convolutions on the surface of the brain wordnet
3
A region of subparallel grooves or ditches formed by a geological process.

"The sulci and gyri are the grooves and ridges, respectively."

Borrowed from Latin sulcus (“a furrow made by a plow”). Doublet of sullow ("plough").