sulcus

[suhl-kuhs]
noun, plural sulci [suhl-sahy] .
1.
a furrow or groove.
2.
Anatomy. a groove or fissure, especially a fissure between two convolutions of the brain.

Origin:
1655–65; Latin: furrow

subsulcus, noun, plural subsulci.
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World English Dictionary
sulcus (ˈsʌlkəs)
 
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]

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American Heritage
Medical Dictionary

sulcus sul·cus (sŭl'kəs)
n. pl. sul·ci (-kī, -sī)

  1. Any of the grooves on the brain surface, bounding the gyri; a fissure.

  2. A long narrow groove or depression, as in an organ or a tissue.


sul'cal adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Example sentences
Clear cerebrospinal fluid surrounds the brain which has unremarkable gyri and sulci.
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