Quincunx (n.) : An arrangement of things by fives in a square or a
rectangle, one being placed at each corner and one in the middle;
especially, such an arrangement of trees repeated indefinitely, so as
to form a regular group with rows running in various directions.
Quincunx (n.) : The position of planets when distant from each other five signs, or 150¡.
Quincunx (n.) : A quincuncial arrangement, as of the parts of a flower in aestivation. See Quincuncial, 2.