A DeFi (decentralized finance) smart contract is a self-executing contract with the terms of the agreement between buyer and seller being directly written into lines of code. These contracts are executed automatically when certain conditions are met, and are stored and replicated on the blockchain network. DeFi smart contracts are used to facilitate transactions and interactions in the decentralized finance ecosystem, such as lending, borrowing, and trading of assets.
Read: https://www.turnkeytown.com/smart-contract-development