mechanism
Americannoun
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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:
France has invoked the European Union's civil protection mechanism to ask for help, President Emmanuel Macron said on Friday, warning that the crisis remained "very intense".
From Barron's ● Jul. 24, 2026
It might have been the first time that the presence of the pitch clock, a mechanism designed to speed the game up, made proceedings take even longer.
From The Wall Street Journal ● Jul. 23, 2026
"The discovery of the PS-TET mechanism has profound implications for many modern molecular technologies involving the spin-triplet excited states of molecules," Prof. Wu noted.
From Science Daily ● Jul. 22, 2026
"I think partially maybe those gratitude letters were another mechanism of him saying, how can you go against me if you are thanking me all the time?"
From BBC ● Jul. 18, 2026
I heard the turning mechanism weighs more than a ton, and it was made melted-down metal from cannons captured from the Confederacy during the Civil War.
From "The (Mostly) True Story of Cleopatra's Needle" by Dan Gutman
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The discussions focused on "common principles and operational mechanisms" for ensuring the safe passage of shipping through the strait while respecting the sovereign rights of the two states, Iran's foreign ministry spokesman Esmaeil Baqaei said.
From Barron's ● Jul. 27, 2026
Iran said on Sunday it had made progress in talks with neighbouring Oman on "common principles and operational mechanisms" for shipping in the Strait.
From Barron's ● Jul. 26, 2026
The minister said they required further assurances from Meta, despite its assertion that it had built mechanisms to defend against cybercrimes through WhatsApp.
From BBC ● Jul. 21, 2026
“The timing and the mechanisms by which those commodities end up affecting our food prices are much more varied, and they take much more time to occur,” Volpe said.
From MarketWatch ● Jul. 18, 2026
To these natural population controls were added cultural mechanisms.
From "Sapiens: A Brief History of Humankind" by Yuval Noah Harari
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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.