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Definition of blockchain

blockchain

/ˈblɑːkˌtʃeɪn/
block · chain
Plural:blockchains
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blockchain Lexical Profile

blockchain Game Scores & Validity

• noun

1

A decentralized digital ledger in which transactions or data records are stored in cryptographically linked blocks across a peer-to-peer computer network.

Example

"The financial institution implemented a blockchain to verify cross-border transactions without relying on a central clearinghouse."

Synonyms
View all synonyms for blockchain

• Nearby Words

blockage
blockbuster
blockbusting
blockchain
blocker
blockhead
blockheaded

Word Origin & Etymology

Coined in the late 2000s as a compound of 'block' and 'chain', originating from the phrase 'chain of blocks' used in the 2008 Bitcoin white paper by Satoshi Nakamoto.

Usage Trend

Historical frequency of usage in published text.

180019102020
Data source: Google Books Ngram Viewer

Cite this Entry

Wordmom. (2026). Definition of Blockchain. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/blockchain
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