arcus
UK /ˈɑːkəs/ · US /ˈɑɹkəs/ noun, proper noun
- noun (medicine) A white band of cholesterol that forms at the edge of the cornea
- noun (meteorology) A low, horizontal cloud typically forming at the leading edge of thunderstorm outflow
- noun (entomology) An elastic band around the base of the arolium, a pad at the end of the leg of certain insects
- noun (palynology) An arc-shaped band of thickened sexine extending between two apertures on a pollen grain or spore
- proper noun A commune, villiage, and river in Covasna, Romania.
Synonyms
Etymology
Borrowed from Latin arcus. Doublet of arc and arco. Distantly related to arrow.
Sources: Wiktionary · WordNet 3.0 — from the Wiktionary entry “arcus”, CC BY-SA 4.0. Details