Standard Missile refers to a family of American-made shipborne guided missiles: RIM-66 Standard, a medium-range surface-to-air missile, the successor of the RIM-24 Tartar surface-to-air missile, currently in use by the U.S. Navy and many other navies around the world RIM-67 Standard, an extended-range surface-to-air missile, the successor of the RIM-2 Terrier surface-to-air missile, withdrawn from service because it was too long to fit into vertical launching system equipped ships AGM-78 Standard ARM, a long-range air-launched anti-radiation missile used by the U.S. Navy and the U.S. Air Force during the War in Vietnam XAIM-97A Seekbat, a proposed long range air-to-air missile, based on the AGM-78, development was cancelled at the flight testing stage. Wikipedia