'Interdependency' definitions:

Definition of 'interdependency'

(from WordNet)
noun
A reciprocal relation between interdependent entities (objects or individuals or groups) [syn: mutuality, interdependence, interdependency]

Definition of 'Interdependency'

From: GCIDE
  • Interdependency \In`ter*de*pend"en*cy\, n. Mutual dependence; as, interdependency of interests. --De Quincey. [1913 Webster]