dynamics

1 of 2

noun

dy·​nam·​ics dī-ˈna-miks How to pronounce dynamics (audio)
plural in form but singular or plural in construction
1
physics : a branch of mechanics (see mechanics sense 1) that deals with forces and their relation primarily to the motion but sometimes also to the equilibrium (see equilibrium sense 2) of bodies
2
: a pattern or process of change, growth, or activity
population dynamics
3
: variation and contrast in force or intensity (as in music)

dynamics

2 of 2

plural of dynamic entry 2

Word History

Etymology

Noun

dynam(ic) entry 1 + -ics, after French dynamique dynamic entry 2

First Known Use

Noun

circa 1789, in the meaning defined at sense 1

Time Traveler
The first known use of dynamics was circa 1789

Cite this Entry

“Dynamics.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/dynamics. Accessed 6 Sep. 2025.

Kids Definition

dynamics

singular or plural noun
dy·​nam·​ics dī-ˈnam-iks How to pronounce dynamics (audio)
1
: the science of the motion of bodies and the action of forces in producing or changing their motion
2
: physical, moral, or intellectual forces or the laws relating to them
3
: the pattern of change or growth
4
: variation in force or intensity (as in music)

Medical Definition

dynamics

noun, plural in form but singular or plural in construction
dy·​nam·​ics dī-ˈnam-iks How to pronounce dynamics (audio)
1
: a branch of mechanics that deals with forces and their relation primarily to the motion but sometimes also to the equilibrium of bodies
2
3
: the pattern of change or growth of an object or phenomenon
personality dynamics
population dynamics

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