Capsule (geometry)
![A two-dimensional orthographic projection of a capsule](/Images/godic/202502/12/Capsule_geometry.svg4347.png")
A capsule (from Latin capsula, "small box or chest"), or stadium of revolution, is a basic three-dimensional geometric shape consisting of a cylinder with hemispherical ends. Another name for this shape is spherocylinder.
The shape is used for containers for pressurised gasses and for pharmaceutical capsules.