Reflex arcs are responsible for automatic responses in the body.

The hot air balloon arcs up into the sky.

The sky was filled with beautiful nocturnal arcs.

Circumhorizontal arcs are beautiful optical phenomena that occur in the Earth's atmosphere.

Carbon arcs are commonly used in stage lighting.

Electric arcs are commonly used in welding and cutting applications.

The subhelic arcs appeared in the sky during the sunset.

The tropical arcs in the sky were a breathtaking sight.

The arcs boutant support the weight of the cathedral's walls.

Island arcs are formed by the subduction of oceanic lithosphere beneath another oceanic or continental lithosphere.