What is Dependency?

Legal Definition
A territory distinct from the country in which the supreme sovereign, power resides, but belonging rightfully to it, and subject to the laws and regulations which the sovereign may think proper to prescribe. It differs from a colony, because it is not settled by the citizens of the sovereign or mother state; and from possession, because it is held by other title than that of mere conquest: for example, Malta was considered a dependency of Great Britain in the year 1813. 3 Wash. C. C. R. 286. Vide act of congress, March 1, 1809, commonly called the non-importation law.
-- Bouviers Law Dictionary
Legal Definition
A territory distinct from the country in which the supreme sovereign power resides, but belonging rightfully to It, and subject to the laws and regulations which the sovereign may think proper to prescribe. U. S. v. The Nancy, 3 Wash. C. C. 286, Fed. Cas. No. 15,854. It differs from a colony, because It ls not settled by the citizens of the sovereign or mother state; and from possession, because It is held by other title than that of mere conquest.
-- Black's Law Dictionary
Legal Definition
A territory apart from but subject to the laws of a mother country.
-- Ballentine's Law Dictionary