noun
sequence number
Technical term used in computing and data communication to identify the order of packets, records, or transactions.
TCPでは、各パケットに順序番号が付けられる。
In TCP, each packet is assigned a sequence number.
Synonymous loanword from English; often used interchangeably in technical contexts.
Compound of 順序 (order, sequence) and 番号 (number).