the customs and regulations dealing with diplomatic formality, precedence, and etiquette.
an original draft, minute, or record from which a document, especially a treaty, is prepared.
a supplementary international agreement.
an agreement between states.
an annex to a treaty giving data relating to it.
Medicine/Medical. the plan for carrying out a scientific study or a patient's treatment regimen.
Computers. a set of rules governing the format of messages that are exchanged between computers.
Also called protocol statement, protocol sentence, protocol proposition. Philosophy. a statement reporting an observation or experience in the most fundamental terms without interpretation: sometimes taken as the basis of empirical verification, as of scientific laws.
1540s, as prothogall "draft of a document," from M.Fr. prothocole (c.1200), from M.L. protocollum "draft," lit. "the first sheet of a volume" (on which contents and errata were written), from Gk. protokollon "first sheet glued onto a manuscript," from protos "first" + kolla "glue." Sense developed in M.L. and M.Fr. from "official account" to "official record of a transaction," "diplomatic document," and finally, in Fr., to "formula of diplomatic etiquette." Meaning "diplomatic rules of etiquette" first recorded 1896, from French; general sense of "conventional proper conduct" is from 1952. "Protocols of the (Learned) Elders of Zion," Rus. anti-Semitic forgery purporting to reveal Jewish plan for world domination, first published in English 1920 under title "The Jewish Peril."