blockchain

noun

block·​chain ˈbläk-ˌchān 

: a digital database containing information (such as records of financial transactions) that can be simultaneously used and shared within a large decentralized, publicly accessible network

also : the technology used to create such a database

The technology at the heart of bitcoin and other virtual currencies, blockchain is an open, distributed ledger that can record transactions between two parties efficiently and in a verifiable and permanent way.

—Marco Iansiti and Karim R. Lakhani

Examples of blockchain in a Sentence

Recent Examples on the Web

From machine learning and blockchain to revenue diversification, working capital optimization and beyond, there are many types of initiatives that companies can invest in to help build their resilience through uncertainty. —Pj Bain, Forbes.com, 25 July 2025

The analyst also pointed out that there is a cap to the number of blockchain integrations Circle can complete from here, further limiting the stock's upside. —Lisa Kailai Han, CNBC, 22 July 2025

In June 2021, Sun — the billionaire founder of the blockchain platform Tron — won an auction for a seat aboard Blue Origin's first-ever crewed spaceflight. —Mike Wall, Space.com, 22 July 2025

Entrepreneurs are building new financial infrastructure based on permissionless blockchains. —Wale Ayeni, semafor.com, 14 July 2025

Word History

First Known Use

2011, in the meaning defined above

Rhymes for blockchain

• abstain
• airplane
• alkane
• arcane
• arraign
• attain
• backplane
• betaine
• biplane
• butane
• campaign
• cetane