EVM
Ethereum Virtual Machine; the computation engine that acts like a decentralized computer for Ethereum.
The Engine of Ethereum
The EVM is the runtime environment for smart contracts in Ethereum. It is not just limited to Ethereum; many other blockchains like Binance Smart Chain (BSC), Polygon, and Avalanche are 'EVM-compatible', meaning they can run the same smart contracts and use the same tools (like MetaMask).