Webster's Revised Unabridged Dictionary · 1913

egg-and-dart

egg-and-dart , noun

a decorative ovolo molding, having a series of egg-shaped figures alternating with another shape in the form of a dart or anchor. Also used attributively; as, an egg-and-dart molding; an egg-and-dart design. Called also egg and dart, and egg and tongue

Also: egg and dart