seclusion /səˈkluːʒən/ noun4 •The act of secluding, shutting out or keeping apart.Seclusion may be used only as a therapeutic measure to prevent a recipient from causing physical harm to himself or physical abuse to others. — 1809 •The state of being secluded or shut out, as from company, society, the world, etc.; solitude. •A secluded, isolated or private place. •The mature phase of the extratropical cyclone life cycle. formsseclusions