∙ The minutes, or official record, of a negotiation or transaction; especially a document drawn up officially which forms the legal basis for subsequent agreements based on it. [from 15th c.] now chiefly historical
∙ An official record of a diplomatic meeting or negotiation; later specifically, a draft document setting out agreements to be signed into force by a subsequent formal treaty. [from 17th c.] international law, now rare
∙ An amendment to an official treaty. [from 19th c.] international law
∙ The first leaf of a roll of papyrus, or the official mark typically found on such a page. [from 19th c.]
∙ The official formulas which appeared at the beginning or end of certain official documents such as charters, papal bulls etc. [from 19th c.]
∙ The original notes of observations made during an experiment; also, the precise method for carrying out or reproducing a given experiment. [from 19th c.] sciences
∙ The official rules and guidelines for heads of state and other dignitaries, governing accepted behaviour in relations with other diplomatic representatives or over affairs of state. [from 19th c.]
∙ An accepted code of conduct; acceptable behaviour in a given situation or group. [from 20th c.] by extension
∙ A set of formal rules describing how to transmit or exchange data, especially across a network. [from 20th c.] computing
∙ The set of instructions allowing a licensed medical professional to start, modify, or stop a medical or patient care order. [from 20th c.] medicine
Verb
∙ To make a protocol of. obsolete, transitive
∙ To make or write protocols, or first drafts; to issue protocols. obsolete, intransitive