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1. (computing) rules determining the format and transmission of data
   - communications protocol
    
2. Forms of ceremony and etiquette observed by diplomats and heads of state
    
3. Code of correct conduct
   "safety protocols"; "academic protocol"
    
4. A procedure for how an activity should be performed
    
5. The original copy of any writing, esp. an agreement

Derived forms: protocols

Type of: code of behavior, code of conduct, etiquette, prescript, rule

Encyclopedia: Protocol