noun
Computing term referring to the distribution of functions, data, or control away from a single central authority.
ブロックチェーンは分散化された台帳技術です。
Blockchain is a decentralized ledger technology.
分散化によってシステムの耐障害性が向
Decentralization improves the system's fault tolerance.
集中化 means 'centralization', the opposite of 分散化.
Compound of 分散 (ぶんさん, 'dispersion') + 化 (か, '-ization'). The exact historical derivation is uncertain, but the term is a modern technical coinage.