noun An act or process that preempts; a preventive or forestalling action; as: The purchase of something before it is offered for sale to others. The purchase of public land by the occupant. The temporary interruption of a task without its cooperation and with the intention of resuming it at a later time. The supersession of a conflicting law from a lower jurisdiction by an overlapping law from a higher jurisdiction.
noun The purchase of something before it is offered for sale to others.
noun The purchase of public land by the occupant.
noun The temporary interruption of a task without its cooperation and with the intention of resuming it at a later time.
noun The supersession of a conflicting law from a lower jurisdiction by an overlapping law from a higher jurisdiction.