Definition

1. Noun:
   • A device or system with moving parts designed to perform a specific function: A mechanism is a physical object or assembly of parts that works together to achieve a particular task, often involving motion.
   • A natural process or system that operates in a machine-like way: In biology and other sciences, a mechanism refers to a system of interacting parts within a living organism or natural phenomenon that produces a specific effect.
   • The fundamental process behind a chemical or physical reaction: In chemistry and physics, a mechanism describes the step-by-step sequence of elementary reactions by which an overall chemical change occurs.
   • A system or method used to achieve a particular result, especially in social or abstract contexts: A mechanism can be a procedure, institution, or process that brings about a specific social, psychological, or technical outcome.

Usage Examples

• Noun (Physical Device):
  • The clock's mechanism is powered by a spring.
  • A locking mechanism prevents the door from opening.
• Noun (Natural/Biological System):
  • Scientists are studying the mechanism of pain perception.
  • The mechanism of infection involves the virus entering host cells.
• Noun (Chemical Process):
  • The reaction mechanism was proposed in the 1930s.
  • Researchers elucidated the catalytic mechanism of the enzyme.
• Noun (Abstract System/Method):
  • The government established a mechanism for reporting corruption.
  • Market forces are a key mechanism for setting prices.

Advanced Usage

• "Defense mechanism": In psychology and biology, an unconscious process or behavior that protects a person from anxiety or harm.
  • Repression is a common psychological defense mechanism.
• "Feedback mechanism": A process in which the output of a system influences its own operation, often to maintain stability.
  • The body uses a feedback mechanism to regulate temperature.

Variants and Related Words

• Mechanical (adj): Relating to or operated by a machine or machinery; performed in an automatic, unthinking way.
  • The process is entirely mechanical.
• Mechanism of action (n phrase): The specific biochemical interaction through which a drug produces its pharmacological effect.
  • The drug's mechanism of action is well understood.

Synonyms

• Device: An object or machine made for a particular purpose.
• Apparatus: The technical equipment or machinery needed for a particular activity or purpose.
• Process: A series of actions or steps taken to achieve a particular end.
• System: A set of connected things or parts forming a complex whole.

Related Phrases

• Trigger mechanism: The part of a device that initiates its operation.
  • The trigger mechanism on the camera was faulty.
• Escape mechanism: A means of avoiding a difficult or unpleasant situation.
  • For him, daydreaming was an escape mechanism.

Idioms

• "Like clockwork": With perfect regularity and precision (related to the idea of a mechanical mechanism).
  • The event ran like clockwork.
• "The wheels are turning": The process or mechanism is in motion or operating (often used figuratively).
  • I can see the wheels turning in his head as he thinks of a plan.

Noun

1. device consisting of a piece of machinery; has moving parts that perform some function
2. (philosophy) the philosophical theory that all phenomena can be explained in terms of physical or biological causes
3. a natural object resembling a machine in structure or function
   • the mechanism of the ear
   • the mechanism of infection
4. the technical aspects of doing something
   • a mechanism of social control
   • mechanisms of communication
   • the mechanics of prose style
5. the atomic process that occurs during a chemical reaction
   • he determined unique mechanisms for the photochemical reactions