The spelling of some motor related parts

For the motors, they are comprised from rotors,armatures and stators.

We usually call a induction motor's movable parts with shaft rotor, and a excited motor , universal motor's movable parts armatures.

The stator of induction motor, the size are called differently with same meaning from different people.

For example, Stator outside diameter is sometimes called diagonal,Stator height sometimes called lamination stack height.