/ˈɑɹkəs/, /ˈɑːkəs/
OriginBorrowed from Latin arcus. Doublet of arc and arco. Distantly related to arrow.
- A white band of cholesterol that forms at the edge of the cornea
- A low, horizontal cloud typically forming at the leading edge of thunderstorm outflow
- An elastic band around the base of the arolium, a pad at the end of the leg of certain insects
- An arc-shaped band of thickened sexine extending between two apertures on a pollen grain or spore
Formsarcus(plural)