English Dictionary

arcus

noun

(medicine) A white band of cholesterol that forms at the edge of the cornea / (meteorology) A low, horizontal cloud typically forming at the leading edge of thunderstorm outflow

The arcus in the sky was a beautiful sight.

意味（1）

(medicine) A white band of cholesterol that forms at the edge of the cornea

意味（2）

(meteorology) A low, horizontal cloud typically forming at the leading edge of thunderstorm outflow

意味（3）

(entomology) An elastic band around the base of the arolium, a pad at the end of the leg of certain insects

意味（4）

(palynology) An arc-shaped band of thickened sexine extending between two apertures on a pollen grain or spore