Definition of mechanism
1 a : a piece of machinery b : a process, technique, or system for achieving a result
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 — compare defense mechanism
Examples of mechanism in a sentence
The camera's shutter mechanism is broken.
Scientists are studying the body's mechanisms for controlling weight.
There is no mechanism in place for enforcing the new law.
a legal mechanism to prevent lobbyists from exerting unfair influence
psychological mechanisms for dealing with a tragic loss
First Known Use of mechanism
MECHANISM Defined for English Language Learners
Definition of mechanism for English Language Learners
: a piece of machinery : a mechanical part or group of parts having a particular function
: a process or system that is used to produce a particular result
: a way of acting, thinking, or behaving that helps or protects a person in a specified way
MECHANISM Defined for Kids
Definition of mechanism for Students
1 : a piece of machinery
2 : the parts by which a machine operates <the mechanism of a watch>
3 : the parts or steps that make up a process or activity <the mechanism of government>
Medical Definition of mechanism
1: a piece of machinery
2a: a bodily process or function <the mechanism of healing>b: the combination of mental processes by which a result is obtained <psychological mechanisms>
3: the fundamental physical or chemical processes involved in or responsible for an action, reaction, or other natural phenomenon
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