The lines differ in the external shape of the phone.

These typically do not have an air chamber and are named only because of their external shape.

They can take all sorts of external shapes.

The crystal habit of a mineral describes its visible external shape.

The external shape can be marked out with the spade and the excavation begun.

You can protect the internal or external shape or configuration of an original design.

The external shape of the building has been preserved, by contrast the interior was completely destroyed.

This internal structure is often reflected in the hexagonal external shape of the crystals.

Both steel and concrete deck girders have the same external shape.

The stadium's plans call for it to have an external shape that will mirror the map of Albania.