arcus

A1R1C3U1S1
US/ˈɑɹkəs/UK/ˈɑːkəs/

noun

A white band of cholesterol that forms at the edge of the cornea

Similar
arcus senilis
OriginLatin arcus →
UncommonScrabble 7
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Meanings

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

Synonyms & antonyms

nouna whitish deposit in the shape of an arc that is sometimes seen in the cornea

Similar
arcus senilis
Broader
cornea
Also see
arcus senilis

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

  1. Latinarcus
  2. Englisharcus

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

More words from Latin

Full word history & related roots →

Translations

Korean 아르쿠스
  • 아르쿠스 (areukuseu)a white band of cholesterol that forms at the edge of the cornea
Portuguese arco
  • arcoa white band of cholesterol that forms at the edge of the cornea

Rhymes & wordplay

Anagrams

carusCursascaur
Cite this entry
APA

arcus. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/arcus

MLA

“arcus.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/arcus. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “arcus,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/arcus.

Source: arcus on Wiktionary, CC BY-SA 4.0.