Definition of "deduplication" [de•du•pli•ca•tion]

• The elimination of redundant duplicate data. (noun)
• The division of that which is morphologically one organ into two or more, such as the division of an organ of a plant into a pair or cluster. (noun)

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• "So, he turned to a technology called deduplication from Data Domain Inc. of Santa Clara."
• "So I asked Ashutosh about any particularly relevant lessons from Data Domain, which created a fundamentally new way of doing data compression and storage (something called deduplication), and is now part of the EMC machine."
• "San Jose-based Ocarina provides storage optimization technology, including compression and deduplication, that is designed to reduce data management costs and streamline operations."