n. A string or chain of any material suspended between two points; specifically, a chain or garland of flowers, ribbons, foliage, etc., suspended so as to form one or more depending curves.n. In architecture, a sculptured ornament in imitation of a garland of fruits, leaves, or flowers suspended between two points; an encarpus. See cut under encarpus.n. A form of drooping cloud sometimes seen on the under surface of dense cirro-stratus clouds. Also called pocky cloud.n. In ornithology, specifically, a lobe on the cutting edge of a hawk's beak.To form in festoons; adorn with festoons; connect by festoons.n. A British collectors' name for a European limacodid moth, Apoda testudo, yellow-brown in color with narrow brown stripes arranged like a festoon.