Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun The branch of mechanics that is concerned with the effects of forces on the motion of a body or system of bodies, especially of forces that do not originate within the system itself.
  • noun The forces and motions that characterize a system.
  • noun The social, intellectual, or moral forces that produce activity and change in a given sphere.
  • noun Variation in force or intensity, especially in musical sound.
  • noun Psychodynamics.

from The Century Dictionary.

  • noun The mathematical theory of force; also (until recently the common acceptation), the theory of forces in motion; the science of deducing from given circumstances (masses, positions, velocities, forces, and constraints) the motions of a system of particles.
  • noun The moving moral or physical forces of any kind, or the laws which relate to them.

from the GNU version of the Collaborative International Dictionary of English.

  • noun That branch of mechanics which treats of the motion of bodies (Kinematics) and the action of forces in producing or changing their motion (kinetics). Dynamics is held by some recent writers to include statics and not kinematics.
  • noun The moving moral, as well as physical, forces of any kind, or the laws which relate to them.
  • noun (Mus.) That department of musical science which relates to, or treats of, the power of tones.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun mechanics The branch of mechanics that is concerned with the effects of forces on the motion of objects.
  • noun music The volume of the sound, such as piano, mezzo piano, mezzo forte, and forte.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun the branch of mechanics concerned with the forces that cause motions of bodies

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

From dynamic +‎ -ics.

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Examples

  • Everything we know suggests that the dynamics is a matter of relationships, that nature does not need artificed order — dams to stop a river, pumps to make it flow, men planting seeds to decree where plants sprout.

    Bukiet on Brooklyn Books Hal Duncan 2009

  • The material and cognitive irreversibility of this dynamics is an essential aspect of the situation.

    Thinking Singularity with Immanuel Kant and Paul de Man: Aesthetics, Epistemology, History and Politics 2005

  • The actual dynamics is more gnarly, to my mind, with nested and threaded sub-narratives of disruption, recognition and reaction (ump-thousand word blog post on this here).

    On Prologues Hal Duncan 2009

  • According to person familiar with his thinking, Mr. Hastings is willing to endure the current drubbing because the long-term dynamics indicate that people will be less and less reliant on the DVD side of the business.

    Netflix CEO Unbowed Ethan Smith 2011

  • The actual dynamics is more gnarly, to my mind, with nested and threaded sub-narratives of disruption, recognition and reaction (ump-thousand word blog post on this here).

    Archive 2009-04-01 Hal Duncan 2009

  • Tahoe's south shore is undergoing a "shift in dynamics" from gambling to a more recreation-focused tourist destination, Carrig said, and Heavenly is likely to play a major role in the transition.

    Heavenly Mountain ski resort plans upgrades despite recession 2010

  • Q. Family dynamics is one topic from which you seem unable to escape in all of your books, whether they be set in the hills of Virginia like Wish

    David Baldacci talks about 'Last Man Standing' 2010

  • "Lower long-end yields tend to be a sign that investors are becoming more comfortable...with the longer-term dynamics of a sovereign."

    Inverted Yield Curve Signals Lower Inflation, Not Recession Erin McCarthy of Dow Jones Newswires 2011

  • Everything we know suggests that this dynamics is not comparable with law.

    Bukiet on Brooklyn Books Hal Duncan 2009

  • "Lower long-end yields tend to be a sign that investors are becoming more comfortable...with the longer-term dynamics of a sovereign."

    Inverted Yield Curve Signals Lower Inflation, Not Recession Erin McCarthy of Dow Jones Newswires 2011

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