No, blockchain is a protocol allowing to insert data into that data structure in a decentralized and secure way. Do you know what "block" in blockchain is for?

No, blockchain is a protocol allowing to insert data into that data structure in a decentralized and secure way. Do you know what "block" in blockchain is for? It is there solely for more efficient application of proof of work algorithm. If you appended each transaction to the chain individually, there would be a lot of reorganizations, unneeded network traffic and wasted energy, hence the "block" that clamps thousands of transactions together.