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(1)   Code of correct conduct
"Safety protocols"
"Academic protocol"
(2)   Forms of ceremony and etiquette observed by diplomats and heads of state
(3)   (computer science) rules determining the format and transmission of data


protocole, protocollum, from [Πρωτόκολλο (Πρώτο+κολλάω)] the first leaf glued to the rolls of papyrus and the notarial documents, on which the date was written; prw^tos the first (see proto- + glue.)


  1. A rule, guideline, or document which guides how an activity should be performed.
  2. The original copy of any writing, as of a deed, treaty, dispatch, or other instrument.
  3. The minutes, or rough draft, of an instrument or transaction.
  4. A preliminary document upon the basis of which negotiations are carried on.
  5. A convention not formally ratified.
  6. An agreement of diplomatists indicating the results reached by them at a particular stage of a negotiation.
  7. A set of formal rules describing how to transmit data, especially across a network. A message syntax or electrical specification and a description 2 or more communication nodes: finite state machines, the transition functions of which take messages or times as input and, when then so triggered, may themselves send messages.


  1. , : To make a protocol of.
  2. , : To make or write protocols, or first drafts; to issue protocols.