Word.ws English Dictionary

sulcus

Syllables: sul·cus/ˈsʌl.kəs/

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

sulcus: a furrow or groove in an organ or a tissue, especially that marking the convolutions of the surface...
Image: Vector data were generated by Life Science Databases(LSDB), CC BY-SA 2.1 jp, via Wikimedia Commons

Noun

sulcus (plural sulci)

  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.
    • The Union’s soft latex-polymer roof is cerebrally domed and a cloudy piamater pink except in spots where it’s eroded down to pasty gray, and everywhere textured, the bulging rooftop, with sulci and bulbous convolutions.1996, David Foster Wallace, Infinite Jest […], Boston, Mass.; New York, N.Y.: Little, Brown and Company, →ISBN, page 186
  2. A region of subparallel grooves or ditches formed by a geological process.

sulcus meaning in Tamil and Arabic

sulcus in Tamil

குழிவு, பள்ளம், வரிப்பள்ளம்

sulcus in Arabic

furrow or groove in an organ or a tissue
تَلَم talam
groove on the surface of the brain
ثَلْم ṯalm

Examples of sulcus in a sentence

  • The largest sulcus, the longitudinal fissure, divides the brain into left and right hemispheres.1999, Thomas C. Pritchard, Kevin D. Alloway, Medical Neuroscience, page 55:
  • Unlike most other sulci, the lateral sulcus is very deep.2006, Inderbir Singh, Textbook of Human Neuroanatomy, 7th edition, page 72:

All 13 example sentences with sulcus

Forms of sulcus

pluralsulci

Plural of sulcus: sulci

Origin of sulcus

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

Words formed from sulcus

Phrases with sulcus

Questions about sulcus

What does sulcus mean?
Sulcus means a furrow or groove in an organ or a tissue, especially that marking the convolutions of the surface of the brain.
What is sulcus in Tamil?
Sulcus in Tamil is குழிவு, பள்ளம், வரிப்பள்ளம். See Sulcus meaning in Tamil.
How do you use sulcus in a sentence?
The largest sulcus, the longitudinal fissure, divides the brain into left and right hemispheres.
What part of speech is sulcus?
Sulcus is a noun.
How do you pronounce sulcus?
Sulcus is pronounced /ˈsʌl.kəs/.
What is the plural of sulcus?
The plural of sulcus is sulci.

Words near sulcus in the dictionary

  1. sulcogyrogenesis
  2. sulconazole
  3. sulcotidil
  4. sulcotrione
  5. sulcular
  6. sulcus
  7. sulcus cutis
  8. suldan
  9. suldans
  10. Sule
  11. Suleah fish

Source and license

Adapted from Wiktionary: sulcus (page history and authors); sulcus (Tamil Wiktionary) (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Pronunciation audio from Wikimedia Commons, each file under its own free license: LL-Q1860 (eng)-Vealhurl-sulcus.wav.

Cite this entry: “sulcus.” Word.ws, https://word.ws/sulcus. Based on Wiktionary, CC BY-SA 4.0.