noun Any set of machine-readable parallel bars or concentric circles, varying in width, spacing, or height, encoding information according to a symbology. .mw-parser-output .defdate{font-size:smaller}
noun A portion of a gene that identifies a particular species.
noun An instance of self-harm, typically with multiple parallel cuts along a line, similar in form to a machine barcode.
verb To apply a barcode (machine-readable code) to.