Quincunx

Quincunx is a noun that refers to an arrangement of five objects with four at the corners and the fifth at the its center. The literal translation of our word of the day is ‘five twelfths,’ but it is better understood as an arrangement that resembles a die that contains five dots. Here’s an example: By arranging the blades on that shaver in quincunx, they made better shave available. Having five blades at the corner and one in the center ensures that no areas get missed.