cy·lin·dri·cal 
(sə-lĭndrĭ-kəl) also cy·lin·dric (-drĭk)
(sə-lĭndrĭ-kəl) also cy·lin·dric (-drĭk)adj.
1. Of, relating to, or having the shape of a cylinder, especially of a circular cylinder.
2. Mathematics Of or relating to the coordinate system, or to any of three coordinates in it, formed by two polar coordinates in a plane and a rectangular coordinate measured perpendicularly from the plane.
cy·lin′dri·cali·ty (-kălĭ-tē) n.
cy·lindri·cal·ly adv.