Protocol is a standard set of rules to enable communication between systems, devices, or software. Learn the full protocol meaning here. Define protocol . protocol synonyms, protocol pronunciation, protocol translation, English dictionary definition of protocol . n. 1. a. The forms of ceremony and etiquette observed by diplomats and heads of state. b. A code of correct conduct: safety protocols ; academic protocol . Protocols and standards are important in computer networks. They are like the rules and guidelines that allow different devices and systems to communicate and work together smoothly. Protocols define how data is sent, received, and processed, while standards ensure that various technologies are compatible with each other. This coordination is critical for the Internet and other networks to function constantly and efficiently. Network protocol ensures that different technologies and ... PROTOCOL definition : 1. the system of rules and acceptable behaviour used at official ceremonies and occasions: 2. a…. Learn more.