ovolo

A rounded convex molding, often a quarter section of a circle or ellipse.

In Roman and later architecture, a convex molding forming in section a quarter of a circle. Also called quarter-round.

A round, convex molding. See Illust. of column.

A classical convex moulding carved with an egg-and-dart ornament.

a convex molding having a cross section in the form of a quarter of a circle or of an ellipse