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Lateral sulcus (fissure on the surface of the brain)

Etymology

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

Pronunciation

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Noun

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sulcus (plural sulci)

  1. (anatomy) A furrow or groove in an organ or a tissue, especially that marking the convolutions of the surface of the brain.
    Synonym: fissure
    Hyponyms: central sulcus, cruciate sulcus, lateral sulcus
    Coordinate term: gyrus
    • 1996, David Foster Wallace, Infinite Jest [], Boston, Mass., New York, N.Y.: Little, Brown and Company, →ISBN, page 186:
      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.
    • 1999, Thomas C. Pritchard, Kevin D. Alloway, Medical Neuroscience[1], page 55:
      The largest sulcus, the longitudinal fissure, divides the brain into left and right hemispheres.
    • 2006, Inderbir Singh, Textbook of Human Neuroanatomy[2], 7th edition, page 72:
      Unlike most other sulci, the lateral sulcus is very deep.
    • 2014, John Kiernan, Raj Rajakumar, Barr's The Human Nervous System: An Anatomical Viewpoint[3], 10th edition, page 213:
      The large surface area of the human cerebral cortex results in a pattern of gyri and sulci.
  2. (planetology) A region of subparallel grooves or ditches formed by a geological process.

Derived terms

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Translations

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References

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Latin

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Etymology

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From Proto-Italic *solkos, from Proto-Indo-European *solk-o-s (furrow), *selk- (to pull, drag), whence also Old English sulh. Doublet of holcus.

Pronunciation

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Noun

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sulcus m (genitive sulcī); second declension

  1. (agriculture) A furrow made by a plow.
    Synonym: fossa
  2. (transferred sense):
    1. (agriculture) Ploughing.
    2. : (of things resembling a furrow)
      1. A long, narrow trench; a ditch.
      2. (in general) A rut or track.

Inflection

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Second-declension noun.

Case Singular Plural
Nominative sulcus sulcī
Genitive sulcī sulcōrum
Dative sulcō sulcīs
Accusative sulcum sulcōs
Ablative sulcō sulcīs
Vocative sulce sulcī

Derived terms

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Descendants

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References

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  • sulcus”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
  • sulcus”, in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
  • sulcus in Charles du Fresne du Cange’s Glossarium Mediæ et Infimæ Latinitatis (augmented edition with additions by D. P. Carpenterius, Adelungius and others, edited by Léopold Favre, 1883–1887)
  • sulcus in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette.
  • De Vaan, Michiel (2008) Etymological Dictionary of Latin and the other Italic Languages (Leiden Indo-European Etymological Dictionary Series; 7)‎[4], Leiden, Boston: Brill, →ISBN