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barcode

barcode
 n.— «Several years ago researchers created probes consisting of nanoscale bars of metal actually etched with conventional bar codes. Since then, most molecular tagging devices have been referred to as “barcodes,” even though there are no bars involved.» —“Synthetic DNA ‘barcodes’ tag pathogens, provide an inexpensive, off-the-shelf monitoring system” by Cornell University News Service Medical News Today June 14, 2005. (source: Double-Tongued Dictionary)

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