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Dynamics definitions

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Webster's 1828 Dictionary

DYNAMICS, n. [Gr., power.] That branch of mechanical philosophy which treats of the force of moving bodies; the science of moving powers, and the effect of moving bodies acting on each other and producing motion.

WordNet (r) 3.0 (2005)

n
1: the branch of mechanics concerned with the forces that cause motions of bodies [syn: dynamics, kinetics]

Merriam Webster's

noun plural but singular or plural in construction Date: circa 1789 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. a pattern or process of change, growth, or activity <population dynamics> 3. variation and contrast in force or intensity (as in music)

NOAA Weather Glossary

Generally, any forces that produce motion or affect change. Inoperational meteorology, dynamics usually refer specifically to those forces that producevertical motion in the atmosphere.

Oxford Reference Dictionary

n.pl. 1 (usu. treated as sing.) a Mech. the branch of mechanics concerned with the motion of bodies under the action of forces (cf. STATICS). b the branch of any science in which forces or changes are considered (aerodynamics; population dynamics). 2 the motive forces, physical or moral, affecting behaviour and change in any sphere. 3 Mus. the varying degree of volume of sound in musical performance. Derivatives: dynamicist n. (in sense 1).

Webster's 1913 Dictionary

Dynamics Dy*nam"ics, n. 1. 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. 2. The moving moral, as well as physical, forces of any kind, or the laws which relate to them. 3. (Mus.) That department of musical science which relates to, or treats of, the power of tones.

Webster's 1913 Dictionary

Mechanics Me*chan"ics, n. [Cf. F. m['e]canique.] That science, or branch of applied mathematics, which treats of the action of forces on bodies. Note: That part of mechanics which considers the action of forces in producing rest or equilibrium is called statics; that which relates to such action in producing motion is called dynamics. The term mechanics includes the action of forces on all bodies, whether solid, liquid, or gaseous. It is sometimes, however, and formerly was often, used distinctively of solid bodies only: The mechanics of liquid bodies is called also hydrostatics, or hydrodynamics, according as the laws of rest or of motion are considered. The mechanics of gaseous bodies is called also pneumatics. The mechanics of fluids in motion, with special reference to the methods of obtaining from them useful results, constitutes hydraulics. Animal mechanics (Physiol.), that portion of physiology which has for its object the investigation of the laws of equilibrium and motion in the animal body. The most important mechanical principle is that of the lever, the bones forming the arms of the levers, the contractile muscles the power, the joints the fulcra or points of support, while the weight of the body or of the individual limbs constitutes the weight or resistance. Applied mechanics, the principles of abstract mechanics applied to human art; also, the practical application of the laws of matter and motion to the construction of machines and structures of all kinds.

Soule's Dictionary of English Synonyms

n. Science of forces.

Moby Thesaurus

activity, actuation, aerodynamics, barodynamics, biodynamics, fluid dynamics, geodynamics, going, hydrodynamics, kinematics, kinesiology, kinesipathy, kinesis, kinesitherapy, kinetics, magnetohydrodynamics, mobilization, motion, motivation, move, movement, moving, myodynamics, restlessness, running, statics, stir, stirring, thermodynamics, unrest, velocity, zoodynamics