•
Arcus cloud formation •
Agfa Arcus scanners •
Arcus (planetary geology) (pl.
arcūs), an arc-shaped feature •
Arcus senilis, age-related change in the iris •
Arcus (satellite), a proposed X-ray space telescope •
Inverse trigonometric functions, also called arcus or arc functions •
Arcus Argentariorum, an arch of San Giorgio al Velabro Church, Rome, Italy • Arcus, the main
protagonist of the webcomic
Acception