"Graceful arc" refers to a smooth, elegant curve or trajectory. It implies a movement or path that is visually pleasing and displays a sense of grace and beauty. Full definition
I love the way the wood beads drape in graceful arcs around the fixture — the shape gives the pendant so much movement and interest. (thechroniclesofhome.com)
Spitzer images of NGC 1333 and other low - mass clusters show them threaded with graceful arcs of jet material that extend from one side of these stellar nurseries to the other. (discovermagazine.com)
The roots make graceful arcs from the trunk to the ground. (AmbergrisCaye.com)