dependency

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun Dependence.
• noun Something dependent or subordinate.
• noun A minor territory under the jurisdiction of a government.

from The Century Dictionary.

• noun Same as dependence.
• noun That of which the existence presupposes the existence of something else; that which depends for its existence upon something else.
• noun An accident or a quality; something non essential.
• noun That which is subordinate to and dependent upon something else; especially, a territory subject to the control of a power of which it does not form an integral part; a dependent state or colony: as, the sun and its dependencies; the dependencies of Great Britain.
• noun The subject or cause of a quarrel, when duels were in vogue; the affair depending.
• noun An out-building; in the plural, offices; minor buildings adjoining or adjacent to a principal structure: as, the hotel and its dependencies.
• noun Synonyms Dependence, Dependency. These forms are now seldom used interchangeably, as they were formerly, dependence being employed almost exclusively in abstract senses, and dependency in concrete ones, or for things or facts instead of relations or states.

from the GNU version of the Collaborative International Dictionary of English.

• noun State of being dependent; dependence; state of being subordinate; subordination; concatenation; connection; reliance; trust.
• noun A thing hanging down; a dependence.
• noun That which is attached to something else as its consequence, subordinate, satellite, and the like.
• noun A territory remote from the kingdom or state to which it belongs, but subject to its dominion; a colony.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A state of dependence; a refusal to exercise initiative.
• noun Something dependent on, or subordinate to, something else:
• noun A colony, or a territory subject to rule by an external power.
• noun A dependence on a habit-forming substance such as a drug or alcohol; addiction.
• noun computing Reliance on the functionality provided by some other, external component.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun the state of relying on or being controlled by someone or something else
• noun a geographical area politically controlled by a distant country
• noun being abnormally tolerant to and dependent on something that is psychologically or physically habit-forming (especially alcohol or narcotic drugs)