the official procedure or system of rules governing affairs of state or diplomatic occasions

protocol forbids the prince from making any public statement in his defence

the original draft of a diplomatic document, especially of the terms of a treaty agreed to in conference and signed by the parties

signatories to the Montreal Protocol

Hungary and the Soviet Union signed a trade protocol

a formal or official record of scientific experimental observations

protocols of published cases frequently lack this vital information

a set of rules governing the exchange or transmission of data between devices