ˈōvəˌlō, ˈȯv- noun
( plural ovo·li -ˌlē)
Etymology: Italian ovolo, uovolo, diminutive of ovo, uovo egg, from Latin ovum — more at egg
: a rounded convex molding that in Roman work is usually a quarter circle in section, in Greek work is flatter, and in medieval architecture is not distinguishable from other convex moldings — compare boltel , torus