different between ulcus vs sulcus

English

Etymology

From Latin ulcus (“sore”). Doublet of ulcer.

Noun

ulcus (plural ulcera)

1. (palynology) A rounded, pore-like aperture at either pole of a pollen grain.

Derived terms

• ulcerate
• ulculus

Latin

Etymology

From earlier *olcos, from Proto-Italic *elkos, from Proto-Indo-European *h?él?os (“wound, illness, ulcer”), from the root *h?el?-; compare Ancient Greek ????? (hélkos, “wound, ulcer”), Old Norse illr (“bad, sick”), Sanskrit ?????? (ár?as, “hemorrhoids”).

Pronunciation

• (Classical) IPA^(key): /?ul.kus/, [????k?s?]
• (Ecclesiastical) IPA^(key): /?ul.kus/, [?ulkus]

Noun

ulcus n (genitive ulceris); third declension

1. sore, ulcer, wound

Declension

Third-declension noun (neuter, imparisyllabic non-i-stem).

Descendants

See also

• vulnus
• ulcus cruris

References

• ulcus in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
• ulcus in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
• ulcus in Gaffiot, Félix (1934) Dictionnaire illustré Latin-Français, Hachette

English

Etymology

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

Pronunciation

• IPA^(key): /?s?l.k?s/
• Rhymes: -?lk?s

Noun

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

   Coordinate term: gyrus

   Hyponyms: calcaneal sulcus, central sulcus, cingulate sulcus, coronal sulcus, cruciate sulcus, interlabial sulcus, intermammary sulcus, lacrimal sulcus, lateral sulcus, malleolar sulcus, postcentral sulcus, preauricular sulcus, precentral sulcus, radial sulcus, sagittal sulcus, sigmoid sulcus, sulcus ansatus, sulcus arteriae vertebralis, sulcus tubae auditivae, tympanic sulcus

2. (planetology) A region of subparallel grooves or ditches formed by a geological process.

Derived terms

• pseudosulcus
• sulcal
• sulcate

Translations

References

• “sulcus”, in Lexico, Dictionary.com; Oxford University Press, 2019–present.
• “sulcus”, in Merriam–Webster Online Dictionary, (Please provide a date or year).

Latin

Etymology

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

• (Classical) IPA^(key): /?sul.kus/, [?s????k?s?]
• (Ecclesiastical) IPA^(key): /?sul.kus/, [?sulkus]

Noun

sulcus m (genitive sulc?); second declension

1. (agriculture) A furrow made by a plow.

   Synonyms: l?ra, porca

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

Second-declension noun.

Descendants

References

• 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, 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