mechanism
Americannoun
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mechanisms
plural
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an assembly of moving parts performing a complete functional motion, often being part of a large machine; linkage.
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the agency or means by which an effect is produced or a purpose is accomplished.
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machinery or mechanical appliances in general.
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the structure or arrangement of parts of a machine or similar device, or of anything analogous.
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the mechanical part of something; any mechanical device.
the mechanism of a clock.
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routine methods or procedures; mechanics.
the mechanism of government.
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mechanical execution, as in painting or music; technique.
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the theory that everything in the universe is produced by matter in motion; materialism.
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Philosophy.
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the view that all natural processes are explicable in terms of classical mechanics.
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the view that all biological processes may be described in physicochemical terms.
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Psychoanalysis. the habitual operation and interaction of psychological forces within an individual that assist in interpreting or dealing with the physical or psychological environment.
noun
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a system or structure of moving parts that performs some function, esp in a machine
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something resembling a machine in the arrangement and working of its parts
the mechanism of the ear
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any form of mechanical device or any part of such a device
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a process or technique, esp of execution
the mechanism of novel writing
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philosophy
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the doctrine that human action can be explained in purely physical terms, whether mechanical or biological
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the explanation of phenomena in causal rather than teleological or essentialist terms
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the view that the task of science is to seek such explanations
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psychoanal
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the ways in which psychological forces interact and operate
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a structure having an influence on the behaviour of a person, such as a defence mechanism
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Other Word Forms
Derived Forms
Inflected Forms
Nouns
Etymology
Origin of mechanism
First recorded in 1655–65; from New Latin mēchanismus; Late Latin mēchanisma “contrivance,” from Greek mēchan(ḗ) machine + New Latin -ismus, Late Latin -isma -ism
Explanation
Use the word mechanism to describe a process that has been set up to accomplish a particular goal. If you’ve set up a method for dealing with your sister when she annoys you, then you have a mechanism in place for establishing peace with your sister. The word mechanism came into the English language in the seventeenth century by way of the Latin word mechanismus, which traces back to the Greek word mekhane, meaning “device" or "means.” Mechanism still carries with it the meaning of “device” and can be used to describe a machine, but nowadays you are more likely to hear it used to describe a process for getting something done, such as "a mechanism for generating revenue" or "a crisis-resolution mechanism."
Vocabulary lists containing mechanism
Power Suffix: -ism
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Engineering - Introductory
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The Suffix -ism, Part 1
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Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
See Examples For:
They developed a pump mechanism and gravity-free tank that works no matter what angle the brush is held at to control the flow.
From The Wall Street Journal ● Sep. 4, 2026
The mechanism, introduced by the world's richest countries in 2020, is meant to help struggling nations cancel some of their debts under strict conditions.
From Barron's ● Sep. 3, 2026
The visit, which took place in August, was allowed by the Israeli military through a deconfliction mechanism with the UN.
From BBC ● Sep. 2, 2026
Home ownership also usually comes with mortgage payments that create a forced-saving mechanism, gradually building equity in the home.
From MarketWatch ● Sep. 2, 2026
Ella's papa used to tell her that life was a massive and intricate clockwork gear—a mechanism of cogs and springs and cams charged with a purpose, each element having to do its part.
From "The Marvellers" by Dhonielle Clayton
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“Songs and tunes, unmoored from formal commercial and legal mechanisms, give succeeding singers and players the freedom to reshape those pieces,” Mr. Wade writes.
From The Wall Street Journal ● Sep. 4, 2026
To become a genuine regional cable hub, she says, India needs "predictable regulation, open infrastructure and rapid repair mechanisms" - the kind of environment that has helped Singapore attract cables and data traffic.
From BBC ● Sep. 3, 2026
Khanal said the disaster underlined the "impetus and urgency" needed to build data-sharing mechanisms to help warn of future disasters, noting that neighbouring China had shared key data after the flood.
From Barron's ● Sep. 3, 2026
Beyond its neo-futuristic design, the BioCharger is made up of four mechanisms that “work together intensely,” says Avital Sarir, a practitioner and client coordinator at Oxynergy2, a Hyperbaric Oxygen Center that has its own BioCharger.
From Los Angeles Times ● Sep. 2, 2026
It is autodestruction due to lytic mechanisms entirely under the governance of the smaller partner.
From "The Lives of a Cell" by Lewis Thomas
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.