1. a system of parts working together in a machine; a piece of machinery
2. a natural or established process by which something takes place or is brought about
3. a mental or behavioral pattern that has become automatic
Usage: psychology

Examples

• The clock's mechanism was damaged and needed repair.
• Scientists are studying the mechanism of photosynthesis in plants.
• The car's steering mechanism allows the driver to control direction.
• There must be a mechanism in place to handle complaints.
• The body has natural healing mechanisms.
• She developed coping mechanisms to deal with stress.
• The voting mechanism ensures fair elections.