cylindro-, cylindr-, cylindri-

(Greek > Latin: roller, roller-shaped figure; used in the sense of being "roller-shaped, column-shaped")

cylinder
cylindrical
cylindroid
semicylindrical
spherocylinder
A combined spherical and cylindrical lens, one surface being spherical, the other cylindrical (a lens in which one of the surfaces is curved in one meridian and less curved in the opposite meridian; for example, a teaspoon or a football).