barcode

noun

bar·​code ˈbär-ˌkōd How to pronounce barcode (audio)
variants or less commonly bar code
plural barcodes also bar codes
1
: a code consisting of a group of printed and variously patterned bars and spaces and sometimes numerals that is designed to be scanned and read into computer memory and that contains information (such as identification) about the object it labels
… one version of the barcode reader used in supermarkets employs a laser scanner.Science
I on the other hand boarded the traditional way. I handed my paper printout to the airport personnel, who scanned the barcode before letting me proceed.Sanjeeb Patel
2
biology : something (such as a DNA sequence) that uniquely identifies a species of organism
… they now plan to analyze each fish sample by decoding a certain tiny piece of DNA that can serve as a unique bar code for the species.Christen Brownlee
bar-coded adjective
bar coding noun

Examples of barcode in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The scan-to-cook feature will even send cooking instructions to the oven by simply scanning a frozen item’s barcode. Jordan Liberty Phillips, Better Homes & Gardens, 10 June 2025 Examine gift cards closely before buying them, paying special attention to the barcodes. Matthew Adams, Fort Worth Star-Telegram, 6 June 2025 Since the votes are the barcodes, voters can’t verify anything. New York Daily News Editorial Board, New York Daily News, 29 May 2025 Food apps that can scan the barcode on a package and rank nutrition are becoming more popular. Brittney Melton, NPR, 28 May 2025 Marilyn Marks, executive director of the Coalition for Good Governance, a lead plaintiff in the litigation over the system, said her group has not taken a position on Trump’s executive order but said the federal Election Assistance Commission should stop certifying machines that use barcodes. Charlotte Kramon, Twin Cities, 19 May 2025 After their creation and subsequent release to the public, the potential of their information storage capabilities became clear as businesses devised creative ways of using these two-dimensional barcodes. Benjamin Claeys, Forbes, 3 Mar. 2025 An Idaho man’s theft scheme involving a literal crime ring and a soup barcode just landed him in the can. Terry Dickerson, NBC News, 6 Feb. 2025 What’s left is like a digital barcode for your eyeball that’s encrypted, split into pieces, and scattered across a decentralized network, kind of like a glitter bomb. Jennifer Jolly, USA Today, 2 May 2025

Word History

First Known Use

1963, in the meaning defined at sense 1

Time Traveler
The first known use of barcode was in 1963

Browse Nearby Words

Cite this Entry

“Barcode.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/barcode. Accessed 18 Jun. 2025.

Kids Definition

bar code

noun
: a code made up of a group of printed and variously spaced bars and sometimes numerals that is designed to be scanned and read into computer memory and that contains information (as identification) about the object it labels
Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!