'Redundancy' definitions:

Definition of 'redundancy'

(from WordNet)
noun
Repetition of messages to reduce the probability of errors in transmission
noun
The attribute of being superfluous and unneeded; "the use of industrial robots created redundancy among workers" [syn: redundancy, redundance]
noun
(electronics) a system design that duplicates components to provide alternatives in case one component fails
noun
Repetition of an act needlessly

Definition of 'Redundancy'

From: GCIDE
  • Redundance \Re*dun"dance\ (r?*d?n"dans), Redundancy \Re*dun"dan*cy\ (-dan*s?), n. [L. redundantia: cf. F. redondance.] [1913 Webster]
  • 1. The quality or state of being redundant; superfluity; superabundance; excess. [1913 Webster]
  • 2. That which is redundant or in excess; anything superfluous or superabundant. [1913 Webster]
  • Labor . . . throws off redundacies. --Addison. [1913 Webster]
  • 3. (Law) Surplusage inserted in a pleading which may be rejected by the court without impairing the validity of what remains. [1913 Webster]

Synonyms of 'redundancy'

From: Moby Thesaurus