the part of the aorta that arches and turns downward
of or relating to the aorta
form an arch or curve
a curved shape in the vertical plane that spans an opening
a curved bony structure supporting or enclosing organs (especially the inner sides of the feet)
naughtily or annoyingly playful
(used of behavior or attitude) characteristic of those who treat others with condescension
(architecture) a masonry construction (usually curved) for spanning an opening and supporting the weight above it
