DeFi stands for decentralized finance. DeFi as a concept is to be able to offer almost all the financial services available with legacy and centralized institutions, typically banks, but on the blockchain. Whatever traditional services financial institutions provide can be expected to be offered through DeFi. In short, Defi is blockchain-based financial services that traditional financial services map into, creating new services or derivatives stemming from blockchain's unique features. Although we have had concepts like distributed computing and decentralized computing for decades, DeFi is in fact a new concept or an expansion of the application scope of blockchain as infrastructure.
Set out to rid the decentralized finance space, free from scammers, DeFi creators tried to patent the term ‘DeFi’. However, this was short-lived as the United States Patent and Trademark Office rejected the registered application last January.
With speculations that the decentralized finance (DeFi) industry is rapidly approaching bubble territory, the Winklevoss twins have vouched for the contrary, saying that the current DeFi craze is a revolution in the making.