n. An arrangement of five objects in a square, one at each corner and one in the middle (thus, ); especially, an arrangement, as of trees, in such squares continuously.n. In botany, same as quincuncial estivation (which see, under quincuncial).n. In astrology, the position of planets when distant from each other five signs or 150°.n. A Roman brass coin of five unciæ.n. A reliquary in the shape of a cross, the four parts of which can be folded over the central one.