Mechanical device and Wheelwork

Mechanical device noun - Mechanism consisting of a device that works on mechanical principles.

Wheelwork and mechanical device are semantically related. In some cases you can replace term "Wheelwork" with "Mechanical device", this terms are similar.

Wheelwork noun - Mechanical device including an arrangement of wheel in a machine (especially a train of gears).

Mechanical device and wheelwork are semantically related. You can use "Mechanical device" instead a noun "Wheelwork".