1. Making active and effective (as a bomb).
2. Stimulation of activity in an organism or chemical.
3. The activity of causing to have energy and be active
(Verkehr) Abflug eines Flugzeugs.
In Sun Microsystem’s J2EE network platform, the process of transferring an enterprise java bean (EJB) from secondary storage to memory. See also EJB, J2EE. Compare passivation.