arcus (suomeksi)

Määritelmät:

(lb, en, medicine) A white band of cholesterol that forms at the edge of the cornea
(lb, en, meteorology) A low, horizontal cloud typically forming at the leading edge of thunderstorm outflow
(lb, en, entomology) An elastic band around the base of the arolium, a pad at the end of the leg of certain insects
(lb, en, palynology) An arc-shaped band of thickened sexine extending between two apertures on a pollen grain or spore