Perfect control in right of ownership. The word implies both title and possession and appears to require a complete retention of control over disposition. Title to an article of property, which arises from the power of disposition and the right of claiming it. Sovereignty; as in the dominion of the seas or over a territory.
In CIVIL LAW, with reference to the title to property that is transferred by a sale of it, dominion is said to be either proximate or remote, the former being the kind of title vesting in the purchaser when he or she has acquired both the ownership and the possession of the article, the latter describing the nature of the title when he or she has legitimately acquired the ownership of the property but there has been no delivery.
Law Library - American Law and Legal InformationFree Legal Encyclopedia: Directed Verdict to Do Not Attempt Resuscitation order (DNAR order)