mechanism

The atomic process that occurs during a chemical reaction.

“he determined unique mechanisms for the photochemical reactions”

The technical aspects of doing something.

“a mechanism of social control”

“mechanisms of communication”

A natural object resembling a machine in structure or function.

“the mechanism of the ear”

“the mechanism of infection”

Device consisting of a piece of machinery; has moving parts that perform some function.

(philosophy) the philosophical theory that all phenomena can be explained in terms of physical or biological causes.