The portion of a Bitcoin transaction that is sent back to the sender. For example, you have 0.5 Bitcoin in your wallet and you send 0.1 Bitcoin to a recipient, the remainder that is not used by this transaction will be sent to your change address.
The portion of a Bitcoin transaction that is sent back to the sender. For example, you have 0.5 Bitcoin in your wallet and you send 0.1 Bitcoin to a recipient, the remainder that is not used by this transaction will be sent to your change address.