n. The science of the forms, ceremonies, and methods to be observed in conducting the actual intercourse of one state with another, through authorized agents, on the basis of international law; the art of conducting such intercourse, as in negotiating and drafting treaties, representing the interests of a state or its subjects at a foreign court, etc.n. The act or practice of negotiation or official intercourse, as between independent powers; diplomatic procedure in general; the transaction of international business: as, the history of European diplomacy.n. Hence Dexterity or skill in managing negotiations of any kind; artful management with the view of securing advantages; diplomatic tact.n. A diplomatic body; the whole body of ministers at a foreign court.n. Same as diplomatics.