protocol

PROH-tuh-kawl /ˈproʊtəkɑːl/
nounB2TOEFLIELTS
formaltechnical

An official system of rules, procedures, or instructions governing conduct or operations.

Carries strict binding authority; departing from protocol in emergency operations requires explicit justification.

The story behind the word. Protocol traces back to Greek prōtokollon, meaning the 'first glued sheet' of a papyrus roll that bore the official record of date and authorship. It evolved through Medieval Latin into French and English as a term for official legal records, diplomatic etiquette, and operational procedures.

Word relationships

  • procedure: Procedure is a series of steps; protocol is an established, authoritative system of rules.
  • regimen: Regimen usually refers to medical or physical training routines.
  • improvisation: Improvisation involves acting without pre-established rules or procedures.

Commonly confused with

  • prototype: A prototype is an early model or sample of a product; a protocol is a set of rules.

Word family

  • protocolized (adjective): Standardized into a set protocol.
  • protocoldriven (adjective): Guided strictly by established protocol rules.

Collocations

  • standard protocol
  • follow protocol
  • safety protocol
  • emergency protocol

Idioms & expressions

  • by the book

Example sentences

  • "Following standard protocol, the operator asked a series of pre-scripted medical questions." Standard operating procedures
  • "A strict security protocol dictates how sensitive caller information is stored and shared." Communications guidelines

Memory hook

PROTO-COL: Glued (kolla) to the first (protos) rules of procedure. Glued to official rules.

When not to use

Do not use to describe informal habits or personal routines.

Fun facts

  • In computer networking, protocols like TCP/IP fulfill the exact same role as emergency protocols: ensuring orderly, standardized communication.

Related words

triage, priority

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