Definitions
1.noun(within a machine or machinery) Any mechanical means for the conversion or control of motion, or the transmission or control of power.
2.nounAny combination of cams, gears, links, belts, chains and logical mechanical elements.
3.nounA group of entities, such as objects, that interact together."political machine"
4.nounA mental, physical or chemical process.
5.nounAny process of, or system designed to manage useful energy conversion.
6.nounThe theory that all natural phenomena can be explained by physical causes.