barcodes

/B AA1 R K OW0 D Z/
noun
  1. 1

    Any set of machine-readable parallel bars or concentric circles, varying in width, spacing, or height, encoding information according to a symbology

  2. 2

    A portion of a gene that identifies a particular species

Source: https://en.wiktionary.org/wiki/barcode, https://en.wiktionary.org/wiki/barcodes