torts. An ouster is the actual turning out, or keeping excluded, the party entitled to possession of any real property corporeal. 2. An ouster can properly be only from real property corporeal, and cannot be committed of anything movable; nor is a mere temporary trespass considered as an Guster. Any continuing act of exclusion from the enjoyment, constitutes an ouster, even by one tenant in common of his co-tenant.
Law Dictionary – Alternative Legal Definition
In practice. A putting out; dispossession; amotion of possession. A species of injuries to things real, by which the wrongdoer gains actual occupation of the land, and compels the rightful owner to seek his legal remedy in order to gain possession. Actual ouster. By “actual ouster” is not meant a physical eviction, but a possession attended with such circumstances as to evince a claim of exclusive right and title, and a denial of the right of the other tenants to participate in the profits