kinetics

noun

ki·​net·​ics kə-ˈne-tiks How to pronounce kinetics (audio)
 also  kī-
plural in form but singular or plural in construction
1
a
: a branch of science that deals with the effects of forces upon the motions of material bodies or with changes in a physical or chemical system
b
: the rate of change in such a system
2
: the mechanism by which a physical or chemical change is effected

Word History

First Known Use

circa 1859, in the meaning defined at sense 1a

Time Traveler
The first known use of kinetics was circa 1859

Cite this Entry

“Kinetics.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/kinetics. Accessed 9 Sep. 2025.

Medical Definition

kinetics

noun, plural in form but singular or plural in construction
ki·​net·​ics kə-ˈnet-iks, kī- How to pronounce kinetics (audio)
1
a
: a branch of science that deals with the effects of forces upon the motions of material bodies or with changes in a physical or chemical system
b
: the rate of change in such a system
2
: the mechanism by which a physical or chemical change is effected

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