A type of node that participates in a blockchain network, performing some function for the network, like securing the network or validating transaction data. A full node stores a complete copy of the blockchain data. Information about every block and the recorded transactions within each block is available in the full copy of the blockchain
Example
“The Bitcoin enthusiast ran a full node on a dedicated computer at home, downloading and verifying all 500+ GB of blockchain data to independently validate every transaction without trusting any third party.”