Either of a pair of side pieces in a machine, structure, or manufactured object.

transferred. Applied to mechanical contrivances resembling the wards of a lock or key.

A spiral-shaped operative part; a tool or device which includes such a part. Chiefly attributive in later use.

A rounded or globular part of various mechanisms or devices, as the nave or hub of a cartwheel, the bob of a pendulum, the bulb of a thermometer…

Name for various structural parts or contrivances having a curved cylindrical form like a swan's neck.

Mechanics. Applied to various cone-shaped parts or apparatus. A cone-shaped drum, used for communicating different speeds to a lathe, etc.

Mechanics. A pipe or piece of iron, etc. curved like the neck of a goose.

technical. One or other of various parts or pieces of machinery, or of instruments and other apparatus, esp. one consisting of a framework or metal…

A concave part of a machine, as of a thresher.