arcus

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English

Shelf cloud, a type of arcus

Etymology

Borrowed from Latin arcus. Doublet of arc and arco. Distantly related to arrow.

Pronunciation

This entry needs pronunciation information. If you are familiar with the IPA or enPR then please add some!

Noun

arcus (plural arcus)

  1. (medicine) A white band of cholesterol that forms at the edge of the cornea
  2. (meteorology) A low, horizontal cloud typically forming at the leading edge of thunderstorm outflow
  3. (entomology) An elastic band around the base of the arolium, a pad at the end of the leg of certain insects
  4. (palynology) An arc-shaped band of thickened sexine extending between two apertures on a pollen grain or spore

Translations

Anagrams

Latin

Latin Wikipedia has an article on:
Wikipedia la

Etymology

    From Proto-Italic *arkuos (bow), from Proto-Indo-European *h₂erkʷos (bow, arrow). Cognate to Old English earh, whence English arrow, as well as Proto-Slavic *orkyta (willow) and Ancient Greek ἄρκευθος (árkeuthos, juniper), owing to juniper and willow twigs being used to make bows due to their flexibility.

    Pronunciation

    Noun

    arcus m (genitive arcūs); fourth declension

    1. arc, arch
    2. bow (arc-shaped weapon used for archery)
    3. rainbow

    Declension

    Fourth-declension noun (dative/ablative plural in -ubus).

    singular plural
    nominative arcus arcūs
    genitive arcūs arcuum
    dative arcuī arcubus
    accusative arcum arcūs
    ablative arcū arcubus
    vocative arcus arcūs

    Derived terms

    Descendants

    • Insular Romance:
      • Sardinian: alcu, arcu
    • Balkano-Romance:
    • Italo-Dalmatian:
    • Rhaeto-Romance:
    • Gallo-Italic:
    • Gallo-Romance:
    • Ibero-Romance:
    • Borrowings:
      • English: arcus
      • Esperanto: arko
      • Ido: arko
      • Indonesian: arkus
      • Middle Low German: ark
        • Low German: ark
          • Danish: ark
            • Icelandic: ark
          • Norwegian Bokmål: ark
          • Norwegian Bokmål: ark
          • Norwegian Nynorsk: ark
          • Swedish: ark
      • Russian: а́рка f (árka)
        • Latvian: arka f
        • Lithuanian: arka f

    See also

    References

    • arcus”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
    • arcus”, in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
    • "arcus", 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)
    • arcus in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette.
    • arcus”, in Harry Thurston Peck, editor (1898), Harper’s Dictionary of Classical Antiquities, New York: Harper & Brothers
    • arcus in Ramminger, Johann (2016 July 16 (last accessed)) Neulateinische Wortliste: Ein Wörterbuch des Lateinischen von Petrarca bis 1700, pre-publication website, 2005-2016
    • arcus”, in William Smith et al., editor (1890), A Dictionary of Greek and Roman Antiquities, London: William Wayte. G. E. Marindin
    1. ^ De Vaan, Michiel (2008) “arcus”, in Etymological Dictionary of Latin and the other Italic Languages (Leiden Indo-European Etymological Dictionary Series; 7), Leiden, Boston: Brill, →ISBN, page 52