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data dictionary

British  

noun

  1. Also called: data directorycomputing an index of data held in a database and used to assist in the access to data

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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The EBA gave no indication how much an integrated IT system based on the data dictionary would cost or how much money would be saved by banks in the longer run.

From Reuters • Dec. 16, 2021