follow Dictionary.com

11 Trending Words of 2014

sulcus

[suhl-kuh s] /ˈsʌl kəs/
noun, plural sulci
[suhl-sahy] /ˈsʌl saɪ/ (Show IPA)
1.
a furrow or groove.
2.
Anatomy. a groove or fissure, especially a fissure between two convolutions of the brain.
Origin
1655-1665
1655-65; Latin: furrow
Related forms
subsulcus, noun, plural subsulci.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source
Examples from the web for sulcus
  • The space between the gum and tooth, called the sulcus.
  • The sulcus is the main place where periodontal problems begin.
  • The fibers run forward through the medulla oblongata, and emerge in the antero-lateral sulcus between the pyramid and the olive.
  • The coronary sulcus can be indicated by a line from the third left, to the sixth right, sternocostal joint.
  • The preauricular sulcus is more commonly present and better marked.
  • The superficial stratum is inserted into the skin of the transverse sulcus which separates the toes from the sole.
British Dictionary definitions for sulcus

sulcus

/ˈsʌlkəs/
noun (pl) -ci (-saɪ)
1.
a linear groove, furrow, or slight depression
2.
any of the narrow grooves on the surface of the brain that mark the cerebral convolutions Compare fissure
Word Origin
C17: from Latin
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Cite This Source
Word Origin and History for sulcus
n.

plural sulci, Latin, literally "furrow, trench, ditch, wrinkle."

Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
sulcus in Medicine

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.
Cite This Source

Word of the Day

Difficulty index for sulcus

Some English speakers likely know this word

Word Value for sulcus

8
12
Scrabble Words With Friends