Definitions for "Data Packet"
Fixed-length self-contained block of data that includes all relevant header information to allow switching, routing and data recovery. Synonyms: Packet
A unit of data being sent over a network. A packet includes a header, addressing information, and the data itself. A packet is treated as a single unit as it is sent from device to device.
A unit of data that is transferred across the network. The format of a data packet varies depending on the type of protocol, but it usually consists of the actual information that's being transferred, plus administrative information that helps get the actual information where it needs to go.