arcus

English

Etymology

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

Pronunciation

• (General American) IPA^(key): /ˈɑɹkəs/
• (Received Pronunciation) IPA^(key): /ˈɑːkəs/

• Audio (Southern England):

  (file)

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

Related terms

• arc
• arcuate
• arcus juvenilis
• arcus inguinalis
• arcus senilis

Translations

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

Korean: 아르쿠스 (areukuseu) Portuguese: arco (pt) m

Anagrams

• Curas, carus, scaur