What does redundant mean?
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From our dictionary:re•dun•dant
Pronunciation: (ri-dun'dunt), [key]
—adj.
1. characterized by verbosity or unnecessary repetition in expressing ideas; prolix: a redundant style.
2. being in excess; exceeding what is usual or natural: a redundant part.
3. having some unusual or extra part or feature.
4. characterized by superabundance or superfluity: lush, redundant vegetation.
5. Engin.
a. (of a structural member) not necessary for resisting statically determined stresses.
b. (of a structure) having members designed to resist other than statically determined stresses; hyperstatic.
c. noting a complete truss having additional members for resisting eccentric loads. Cf. complete (def. 8), incomplete (def. 3).
d. (of a device, circuit, computer system, etc.) having excess or duplicate parts that can continue to perform in the event of malfunction of some of the parts.
6. Ling.characterized by redundancy; predictable.
7. Computers.containing more bits or characters than are required, as a parity bit inserted for checking purposes.
8. Chiefly Brit.removed or laid off from a job.
