1. (n.) 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. (n.) The moving moral, as well as physical, forces of any kind, or the laws which relate to them.

3. (n.) That department of musical science which relates to, or treats of, the power of tones.

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