Penannular

Penannular means in the form of an incomplete circle or ring and may refer to:


 * Penannular brooch or Celtic brooch, a type of brooch clothes fasteners, often rather large
 * Pseudo-penannular brooch, a related type that appears to be penannular, with two large terminals, but actually forms a complete circle
 * Penannular ring
 * Penannular bracelet
 * A common form of earthworks; including some ditches around bowl barrows