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binary-coded decimal system

[bahy-nuh-ree-koh-did, -ner-ee-]
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noun
  1. a numerical system in which each decimal digit is represented by a unique collection of binary digits, not necessarily the same as those used in binary notation. Abbreviation: BCD
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018