The official procedure or system of rules governing affairs of state or diplomatic occasions
he was always a stickler for protocol
Chiefly Scottish a book or register used for recording legal transactions, etc. (now historical).
Any of various protocols drawn up in Geneva, especially that of 1925 limiting chemical and bacteriological warfare
Each of four protocols signed in Montreal in 1975 concerning the presumed liability of an international air carrier in the event of death or injury to a passenger or delay, damage to, or loss of cargo or baggage.
A set of rules governing the format of data sent over the Internet or other network
A specification for the transfer of data to and from a hand-held wireless device, especially a mobile phone; abbreviated WAP.
A set of data exchange codes linking various machines in a factory; frequently attributive; also abbreviated MAP.