Also see the separate article Coma. Previously, the term persistent vegetative state (PVS) was used to describe all patients with prolonged disorders of consciousness. PVS has become marked by ethical and medical dilemmas, often, if not always, requiring legal assistance.
Full Definition of AGENCY. 1. a: the office or function of an agent b: the relationship between a principal and that person's agent. 2. : the capacity, condition, or state of acting or of exerting power: operation.
Advertising agency. 1  1. 2  Advertising agency An advertising agency or ad agency is a service business dedicated to creating, planning and handling advertising (and sometimes other forms of promotion) for its clients. Advertising agency An advertising agency or ad agency is a service business dedicated to creating, planning and handling advertising (and sometimes other forms of promotion) for its clients.