Ethereum /ɪˈθɪəɹiəm/ noun2 •An open source, blockchain-based cryptocurrency network, that features smart contracts.All Ethereum clients provide a set of JSON-RPC methods for external DApps to interact with the Ethereum blockchain network. — 2019 •(nonstandard) Ether, the cryptocurrency used in that network.“Everydays” was the first purely digital NFT sold by Christie’s, and it offered to accept payment in Ethereum, another first for the 255-year-old auction house. — 2021
