barcode
UK: ˈbɑːkəʊd | US: ˈbɑːrkoʊd
n. a machine-readable code consisting of parallel lines of varying widths, used to identify products.
vt. to label or mark with a barcode.
The word "barcode" is a compound of "bar" (referring to the parallel lines) and "code" (a system of symbols for communication). It emerged in the mid-20th century with the development of automated identification systems. The "bar" component visually represents the linear patterns, while "code" reflects its function as a data carrier. The term logically combines form (bar) and purpose (code), making it intuitive for learners.
The cashier scanned the barcode to register the product price.
Each item in the warehouse must have a unique barcode.
Modern libraries use barcodes to track book loans efficiently.
The manufacturer forgot to print the barcode on the packaging.
Barcode technology revolutionized retail inventory management.