noun, plural o·vo·li [oh-vuh-lahy] /ˈoʊ vəˌlaɪ/. Architecture.
- a convex molding forming or approximating in section a quarter of a circle or ellipse.
noun plural -li (-ˌlaɪ)
- architect a convex moulding having a cross section in the form of a quarter of a circle or ellipseAlso called: quarter round, thumb Compare congé (def. 3), echinus (def. 1)