mechanics
Americannoun
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(used with a singular verb) the branch of physics that deals with the action of forces on bodies and with motion, comprised of kinetics, statics, and kinematics.
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(used with a singular verb) the theoretical and practical application of this science to machinery, mechanical appliances, etc.
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(usually used with a plural verb) the technical aspect or working part; mechanism; structure.
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(usually used with a plural verb) routine or basic methods, procedures, techniques, or details.
the mechanics of running an office; the mechanics of baseball.
noun
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(functioning as singular) the branch of science, divided into statics, dynamics, and kinematics, concerned with the equilibrium or motion of bodies in a particular frame of reference See also quantum mechanics wave mechanics statistical mechanics
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(functioning as singular) the science of designing, constructing, and operating machines
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the working parts of a machine
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the technical aspects of something
the mechanics of poetic style
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The branch of physics concerned with the relationships between matter, force, and energy, especially as they affect the motion of objects.
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See also classical physics quantum mechanics
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The functional aspect of a system, such as the mechanics of blood circulation.
Discover More
The basic laws of mechanics are Newton's laws of motion.
Etymology
Origin of mechanics
Explanation
Mechanics is the science of things in motion. If you're a physicist and your specialty is mechanics, you most likely study the way physical bodies are affected by forces and how they affect their environment. Mechanics is one branch of physics — and some mathematicians are also focused on mechanics. You can divide this field of study into classical mechanics and quantum mechanics, but in either case it involves the study of motion and the forces that cause or result from motion. You can also use the noun mechanics when you talk about the inner workings or details of something, like the mechanics of baseball or the mechanics of the banking industry.
Vocabulary lists containing mechanics
TEKS ELAR Academic Vocabulary List (5th-7th grades)
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Engineering - Introductory
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STAAR English I: Composition, Revision, and Editing
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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.
“The mechanics of the reopening remain murky,” Croft added in a late afternoon note.
From Barron's • Apr. 17, 2026
With nuance and eagle-eyed research, he affords readers an unprecedented look at the mechanics of a musical fusion that, in many ways, we’re only just beginning to understand.
From Salon • Apr. 17, 2026
So the packages engineers and mechanics are offered have to be more competitive.
From BBC • Apr. 16, 2026
The whole country has gotten an intensive education into the mechanics of the constitutional process.
From Slate • Apr. 15, 2026
Near the lone hangar, lethargic mechanics in grease-stained uniforms poked among the entrails of decrepit jets far removed from their vintage years.
From "The Great Santini" by Pat Conroy
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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.