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protocol

 
/ˈproʊt̬·əˌkɔl/, /-ˌkɑl/ n [C/U] (RULES)

Definition

the formal system of rules for correct behavior on official occasions: [U] According to protocol, the new ambassador will present his credentials to the president. science A protocol is also the rules to be followed when doing a scientific study or an exact method for giving medical treatment: [U] medical protocol [C] a treatment protocol
(Definition of protocol n (RULES) from the Cambridge Academic Content Dictionary © Cambridge University Press)

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