noun Date: 1662 1. a. a piece of machinery b. a process, technique, or system for achieving a result 2. mechanical operation or action ; working 2 3. a doctrine that holds natural processes (as of life) to be mechanically determined and capable of complete explanation by the laws of physics and chemistry 4. the fundamental processes involved in or responsible for an action, reaction, or other natural phenomenon <
mechanisms of organic evolution
— compare defense mechanism

New Collegiate Dictionary. 2001.


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