Dictionary.com

sulcus

[ suhl-kuhs ]
/ ˈsʌl kəs /
Save This Word!

noun, plural sul·ci [suhl-sahy]. /ˈsʌl saɪ/.

a furrow or groove.
Anatomy. a groove or fissure, especially a fissure between two convolutions of the brain.

QUIZZES

QUIZ YOURSELF ON AFFECT VS. EFFECT!

In effect, this quiz will prove whether or not you have the skills to know the difference between “affect” and “effect.”
Question 1 of 7
The rainy weather could not ________ my elated spirits on my graduation day.

Origin of sulcus

1655–65; Latin: furrow
sub·sul·cus, noun, plural sub·sul·ci.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for sulcus

sulcus
/ (ˈsʌlkəs) /

noun plural -ci (-saɪ)

a linear groove, furrow, or slight depression
any of the narrow grooves on the surface of the brain that mark the cerebral convolutionsCompare fissure
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

Medical definitions for sulcus

sulcus
[ sŭlkəs ]

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.
sulcal adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Learning At Home Just Got Easier!