What is the meaning of Barcode?

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

A portion of a gene that identifies a particular species.

An instance of self-harm, typically with multiple parallel cuts along a line, similar in form to a machine barcode.

barcode

of a shape that resembles barcode

barcode

Source: wiktionary.org