Dynamical (adjective)

1. Relating to dynamics, the branch of mechanics concerned with the motion of bodies under the action of forces.
2. Relating to the forces and energy involved in motion or change.

Origin:

Early 17th century: from late latin dynamicus, from greek dunamikos "powerful", from dunamis "power".

Examples:

1. The study of planetary motion is a branch of dynamical systems theory.
2. The dynamical systems of the solar system are complex and difficult to predict.
3. Dynamical simulations are used to study the behavior of complex systems.
4. The dynamical properties of a fluid are studied in fluid dynamics.
5. The dynamical evolution of stars is studied in stellar dynamics.