(rail transport) Braking by the use of an electric traction motor as a generator when slowing a vehicle such as an electric or diesel-electric locomotive.

(grammar) a verb which generally expresses an action or activity rather than a state.

plural of dynamic verb

(physics) The fluid dynamics of ferrofluids

plural of dynamic memory allocation

(computing) The process of allocating memory at runtime.

(Internet) The use of a dynamic IP address.

(telecommunications) An IP address which changes periodically, when each time a user connects to their internet service provider.

(physics) The study of the motion of rigid bodies under the influence of forces.

(physics) A proposed extension to Newtonian dynamics that would obviate the need to assume the presence of dark matter.